STANDARD

SPECIFICATIONS FOR
CONSTRUCTION WORKS
2008

Module – 14 – Plumbing and Sanitary

Introduction
The Standard Specification is published in a series of 21 stand-alone modules each addressing

single distinct areas of the construction process. This stand-alone module 14 addresses the main

aspects of plumbing and sanitary in general.

The purpose of the MoW STANDARD SPECIFICATIONS FOR CONSTRUCTION is to provide the

design professional with a guide for accepted construction practices for Ministry of Works projects.

As an aid to the designer, these Standard Specifications are provided for the inclusion in proposed

development projects for ease, efficiency and cost savings.

The Standard Specifications are not intended to limit the design responsibility of the design

professional. However, they establish a minimum acceptable criterion and/or quality for use within

Ministry of Works projects.

The design professional may increase the requirements of an item contained in the Standard

Specifications to meet job requirements, but when this is done, there should be no reference for

that item on the drawings to the Ministry of Works Standard Specifications and a new specification

should be included with the drawings or project contract documents.

The design professional must review all Standard Specifications to be sure that they are adequate

for the proposed project based on the job site conditions; the design professional is solely

responsible for the designs submitted under his seal.

In order to keep design standards current with changing regulations and improved construction

materials and practices this section will be updated and maintained by the concerned authorities of

the Ministry of Works. Prior to starting a new project, the design professional should contact the

concerned Directorate of the Ministry of Works to verify that he/she has the latest document

revisions.

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Module List
Module
No Module Title
1 Guidance and General Specifications

2 Concrete

3 Earthworks

4 Glass and Glazing

5 Joinery and Carpentry

6 Ironmongery

7 Internal Finishes including Thermal Insulation

8 Painting and Decorating (Internal & External)

9 Metalwork

10 Roofing

11 Structural Steel (and Coatings)

12 Structural Timber

13 Masonry

14 Plumbing and Sanitary

15 Mechanical Installation in Buildings

16 Electrical Installation

17 Sewerage Pipelines and Pipework

18 Sewerage M&E Works

19 Roadworks

20 Landscaping

21 Dredging, Reclamation and Shoreline Protection

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Table of Contents

CLAUSE DESCRIPTION PAGE

Introduction 1

Module List 2

Table of Contents 3

Foreword 4

1. PART 1 MATERIALS 5
1.1 Source of Approval……………………………………………………………….. 5
1.2 Delivery Control, Handling, Storage and Protection…………………………... 8

2. PART 2 METHODOLOGY AND WORKMANSHIP 10

2.1 General…………………………………………………………………………… 10
2.2 Off-site Testing of Components………………………………………………... 10
2.3 Site Inspections………………………………………………………………….. 16
2.4 Completion and Handover……………………………………………………… 19

3. PART 3 SUMMARY 20
3.1 Submittals………………………………………………………………………… 20
3.2 References……………………………………………………………………….. 30

Abbreviations 34

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Foreword
This specification provides the basis for Plumbing and Sanitary. It covers the main requirements for

all materials, components, installation, testing and commissioning of equipments for plumbing and

sanitary.

This specification must be read in its entirety, as it is structured in order of work-flow, which means

that items or activities appear in several places in the specification corresponding to the

progression of the construction process.

For larger or more complex or specialist projects, a project-specific Particular Specification for

Plumbing and Sanitary may also be provided.

Absence of clauses for materials and methods does not necessarily signify that they can not be

used. Proposals for use of innovative methods and materials are encouraged and are subject to

review and approval by the Client.

Where the word approved is used in this specification, this means that the Client or Engineer has

been consulted and has confirmed that the item or procedure is acceptable in the specific context

for which approval has been requested.

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1. PART 1 MATERIALS

1.1 Source of Approval

Materials and components shall comply with the relevant standards and code of practice
described in the latest edition of Plumbing Engineering Services Design Guide, published
by the Institute of Plumbing and Heating Engineering (IPHE), or with the standards listed
in the following sections with all amendments in force at time of tender.

1.1.1 Liquid / Water Disposal

1.1.1.1 Sanitary Plumbing, Drainage, Rainwater, Pipework and Ancillaries

BS EN 198 - Sanitary appliances. Baths made from crosslinked cast acrylic sheets.
Requirements and test methods
BS EN 274 – Waste fittings for sanitary appliances
BS EN 295 – Vitrified clay pipes and fittings and pipe joints for drains and sewers
Part 1 – Requirements
Part 2 – Quality control and sampling
Part 3 – Test methods
Part 4 – Requirements for special fittings, adaptors and compatible accessories
Part 5 – Requirements for perforated vitrified clay pipes and fittings
Part 6 – Requirements for vitrified clay manholes
Part 7 – Requirements for vitrified clay pipes and joints for pipe jacking
Part 10 – Performance requirements
BS 460 – Cast iron rainwater goods. Specification
BS 569 – Specification for asbestos-cement rainwater goods
A written approval is required from Directorate of Environmental Assessment and
Planning for use of this standard.
BS EN 588 – Fibre-cement pipes for sewers and drains
Part 1 – Pipes, joints and fittings for gravity systems
Part 2 – Manholes and inspection chambers
BS EN 598 – Ductile iron pipes, fittings, accessories and their joints for sewerage
applications. Requirements and test methods
BS EN 607 – Eaves gutters and fittings made of PVC-u. Definitions, requirements and
testing
BS EN 612 – Eaves gutters with bead stiffened fronts and rainwater pipes with seamed
joints made of metal sheet
BS EN 752 – Drain and sewer systems outside buildings
BS EN 1253 – Gullies for buildings
Part 1 – Requirements
Part 2 – Test methods
Part 3 – Quality control
Part 4 – Access covers
Part 5 – Gullies with light liquids closure
BS EN 1462 - Brackets for eaves gutters. Requirements and testing
BS 1876 – Specification for automatic flushing cisterns for urinals
BS 3868 – Specification for prefabricated drainage stack units in galvanized steel
BS 4514 – Unplasticized PVC soil and ventilating pipes of 82.4 mm minimum mean
outside diameter, and fittings and accessories of 82.4 mm and of other sizes.
Specification
BS 5255 – Specification for thermoplastics waste pipe and fittings
BS 5911 – Pre-cast concrete pipes, and ancillary concrete products
Part 1 – Specification for un-reinforced and reinforced concrete pipes (including jacking
pipes) and fittings with flexible joints
Part 3 – Specification for un-reinforced and reinforced concrete manholes and soakaways

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 Part 4 – Specification for un-reinforced and reinforced concrete inspection chambers
Part 5 – Specification for pre-stressed non-pressure pipes and fittings with flexible joints
Part 6 – Specification for road gullies and gully cover slabs
BS 6465 – Sanitary installations
Part 1 – Code of practice for the design of sanitary facilities and scales of provision of
sanitary and associated appliances
Part 3 – Code of practice for the selection, installation and maintenance of sanitary and
associated appliances
BS 7158 – Plastic inspection chambers for drains and sewers. Specification
BS EN 12200 - Plastics rainwater piping systems for above ground external use.
Unplasticized polyvinylchloride (PVC-u)
BS EN 13476 – Specification for plastics piping systems for non-pressure underground
drainage and sewerage
BS EN 14364 - Plastic piping systems for drainage and sewerage with or without
pressure. Glass reinforced thermosetting plastics (GRP) based on unsaturated polyester
resin (UP). Specifications for pipes, fittings and joints

1.1.1.2 Sanitary Fixtures and Accessories

BS EN 31 – Pedestal wash basins. Connecting dimensions

BS EN 32 - Wall-hung wash basins. Connecting dimensions
BS EN 35 - Pedestal bidets with over-rim supply. Connecting dimensions
BS EN 36 - Wall-hung bidets with over-rim supply. Connecting dimensions
BS EN 198 - Sanitary appliances. Baths made from crosslinked cast acrylic sheets.
Requirements and test methods
BS EN 997 – WC pans and WC suites with integral trap
BS EN 1036 – Glass in building. Mirrors from silver-coated float glass for internal use
BS 1125 – WC flushing cisterns (including dual flush cisterns and flush pipes
BS 1188 – Ceramic wash basins and pedestals
BS 1189 – Baths made from porcelain enamelled cast iron
BS 1876 – Specification for automatic flushing cisterns for urinals
BS 5504 – Wall hung WC pan
BS 6340 – Shower units
BS 6465 – Sanitary installations
BS EN 13310 – Kitchen sinks. Functional requirements and test methods

1.1.2 Liquid Systems

1.1.2.1 Pipework, Valves and Ancillaries

BS EN 806: Part 2. Specification for installations inside buildings conveying water for
human consumption. Design
BS EN 1057 – Copper and copper alloys. Seamless, round copper tubes for water and
gas in sanitary and heating applications
BS EN 1092 – Flanges and their joints
BS EN 1254 – Copper and copper alloys. Plumbing fittings
BS 6700 – Design, installation, testing and maintenance of services supplying water for
domestic use within buildings and their curtilages. Specification
BS 7291 – Thermoplastics pipes and associated fittings for hot and cold water for
domestic purposes and heating installations in buildings
Part 1 – General requirements
Part 2 – Specification for polybutylene (PB) pipes and associated fittings
Part 3 – Specification for cross-linked polyethylene (PE-X) pipes and associated fittings
Part 4 – Specification for chlorinated polyvinyl chloride (PVC-C) pipes and associated
fittings and solvent cement
CIBSE, Guide G: Public Health Engineering. CIBSE 2004. ISBN 1 903287 42 1

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 CIBSE, Guide C: Reference Data. CIBSE 2001. ISBN 0750653604

1.1.2.2 Cold Water Storage and Distribution

BS EN 806: Part 2 – Specification for installations inside buildings conveying water for
human consumption. Design
BS 5257 – Specification for horizontal end-suction centrifugal pumps (16 bar)
BS 6700 – Design, installation, testing and maintenance of services supplying water for
domestic use within buildings and their curtilages. Specification
BS EN 13121 – GRP tanks and vessels for use above ground
BS EN 60730 – Automatic electrical controls for household and similar use
CIBSE, Guide G: Public Health Engineering. CIBSE 2004. ISBN 1 903287 42 1
The Institute of Plumbing. Plumbing Engineering Services Design Guide. The Institute of
Plumbing 2002. ISBN 1 871956 40 4. (Now Institute of Plumbing and Heating
Engineering.)
NHS Estates. HTM2027. Hot and Cold Water Supply Storage and Mains Services. 1995

1.1.2.3 Hot Water Storage and Distribution

BS EN 806: Part 2 – Specification for installations inside buildings conveying water for
human consumption. Design
BS 853 – Specification for vessels for use in heating systems
BS EN 1151: Part 1 – Pumps. Rotodynamic pumps. Circulation pumps having a rated
power input not exceeding 200 W for heating installations and domestic hot water
installations. Non-automatic circulation pumps, requirements, testing, marking
BS 6700 – Design, installation, testing and maintenance of services supplying water for
domestic use within buildings and their curtilages. Specification
BS EN 12897 – Water supply. Specification for indirectly heated unvented (closed)
storage water heaters
BS EN 60335 - Household and similar electrical appliances. Safety. General
requirements
BS EN 60730 – Automatic electrical controls for household and similar use
CIBSE, Guide G: Public Health Engineering. CIBSE 2004. ISBN 1 903287 42 1
The Institute of Plumbing. Plumbing Engineering Services Design Guide. The Institute of
Plumbing 2002. ISBN 1 871956 40 4. (Now Institute of Plumbing and Heating
Engineering.)
NHS Estates. HTM2027. Hot and Cold Water Supply Storage and Mains Services. 1995
Water Regulation Advisory Scheme. Water Fittings and Materials Directory

1.1.2.4 References Specific to Legionnaires Disease – Hot & Cold Water Services

BSRIA AG 19/00. Guide to Legionellosis – Operation and Maintenance. 2000. ISBN

0 86022 547 X
BSRIA AG 21/00. Legionellosis Control Log Book. 2000. ISBN 0 86022 562 3
BSRIA AG 20/00. Guide to Legionellosis – Risk Assessment. 2000. ISBN 0 86022 561 5
BSRIA AG 4/94. Guide to Legionellosis – Temperature Measurements for Hot and Cold
Water Services. 1994. ISBN 0 86022 366 3
BSRIA TN 6/96. Ionisation Water Treatment for Hot and Cold Water Services. 1996.
ISBN 0 86022 438 4
CIBSE, TM 13: Minimising the Risk of Legionnaires’ Disease – Section 5: Hot and Cold
Water Services. CIBSE 2002. ISBN 1 903287 23 5
HSC, L8: The Control of Legionella Bacteria in Water Systems. Approved Code of
Practice and Guidance. HSE 2000. ISBN 0 7176 1772 6

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1.1.3 Water Treatment

BS EN 806: Part 2 – Specification for installations inside buildings conveying water for
human consumption. Design
BS 6700 – Design, installation, testing and maintenance of services supplying water for
domestic use within buildings and their curtilages. Specification
BS 8300 – Design of buildings and their approaches to meet the needs of disabled
people. Code of practice.
BS EN 13451: Part 3 – Swimming pool equipment. Additional specific safety
requirements and test methods for pool fittings for water treatment purposes.
CIBSE. Guide G: Public Health Engineering. CIBSE 2004. ISBN 1 903287 42 1
HSC. L8: The Control of Legionella Bacteria in Water System. Approved Code of Practice
and Guidance. HSE 2000. ISBN 0 7176 1772 6
Pool Water Treatment Advisory Group (PWTAG). Swimming Pool Water Treatment and
Quality Standards. 1999
Water Regulations Advisory Scheme. Water Regulations Guide. WRAS. 2000. ISBN
09539708-0-9

1.1.4 Fire Protection Services

Refer to clause “Section 4” of Module 15 Mechanical Installation for Buildings

BS EN 671 – Fixed fire fighting systems. Hose systems

BS 750 – Specification for underground fire hydrants and surface box frames and covers
BS 5306 – Code of practice for fire extinguishing installations and equipment on premises
Part 1 – Hose reels and foam inlets
Part 2 – Specification for sprinkler systems
Part 4 – Specification for carbon dioxide systems
Part 6.1 – Code of practice for fire extinguishing installations and equipment on premises.
Hose reels and foam inlets
Part 6.2 – Fire extinguishing installations and equipment on premises. Specification for
sprinkler systems
Part 8 – Selection and installation of portable fire extinguishers. Code of practice
BS 6391 – Specification for non-percolating layflat delivery hoses and hose assemblies
for fire fighting purposes
BS 9251 – Sprinkler systems for residential and domestic occupancies. Code of practice
BS 9990 – Code of practice for non-automatic fire-fighting systems in buildings
BS EN 12094 – Fixed firefighting systems. Components for gas extinguishing systems
BS EN 12416 – Fixed firefighting systems. Powder systems
BS EN 12845 – Fixed firefighting systems. Automatic sprinkler systems. Design,
installation and maintenance

1.2 Delivery Control, Handling, Storage and Protection

1.2.1 Delivery

Delivery of all materials brought to the Site shall be recorded by means of delivery
sheets.

These records shall be maintained on the Site and may be available for review by the
engineer if requested. Items of equipment will not be considered completely on the Site
unless all accompanying installation documentation and ancillaries are included within the
delivery.

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 Large plant items and items of large monetary value shall be delivered by the
manufacturer supplier in proprietary crates/packaging using vehicles intended for the
purchase.

The Engineer will be notified in advance of such large plant items arriving at the Site to
review the status of equipment and packaging at time of receipt.

All relevant accompanying documentation shall be included with the equipment at the
time of delivery and appropriate checks will be made ensuring the documentation and
delivered items are in accordance with each other.

Where the contractor obtains material early, for example for financial benefits of early
purchasing, but chooses to store the items off the Site in his own premises the above
statements remain applicable.

1.2.2 Handling

All materials entering the Site shall be handled at all times in a safe manner between
delivery to the Site stores or from stores to location of final installation.

Handling of all material shall in all instances be in accordance with the manufacturers
recommendations. All material delivered to the Site should be accompanied by the
relevant manufacturers data referring to the handling of the item.

Particular importance shall be given to the handling of large plant items and large
monetary value items. Any damage caused during to handling of material and plant on
the Site shall be reported to the engineer at the earliest possible time.

The contractor shall ensure that all plant required moving material and equipment is
available on the Site at the time needed.

1.2.3 Storage and Protection

Agreement for location and size of site stores shall be agreed in advance of mobilising
the Site.

Storage of material shall be in accordance with the requirements of the manufacturer.

Particular importance shall be given to items requiring stable climatic conditions

(temperature, humidity and sunlight) to ensure that they are not damaged between time
of supply from the manufacturer and the time at which they are to be installed.

Where required certain parts of equipment may have to be installed at a later date than
the bulk of the equipment, for example UPS batteries may be installed later than the
cabinet ensuring that air conditioning is working prior to there installation.

Storage of material will be in 3 categories which shall include:

• Internal storage
• Internal storage in climatic controlled environment
• External storage

Whilst in storage the contractor is obliged to ensure the protection of material. This
includes security of such material and also the physical protection.

Any such items of equipment delivered to the Site in crates or containers should remain
in its packaging until the time of installation, the crates or containers should be opened to

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 check the equipment upon arrival at the Site but then re-sealed to prevent damage from
occurring whilst in storage.

24-hour security shall be provided to guard stores of equipment containing high value
items.

2. PART 2 METHODOLOGY AND WORKMANSHIP

2.1 General

The installation(s) shall comply with all relevant legislative requirements of the Kingdom
of Bahrain.

The installation shall comply with any special regulations issued by any relevant authority
of the Kingdom of Bahrain.

Unless specified to the contrary by any special requirements of the Electricity Directorate
or National Oil and Gas Authority, electrical works shall comply with BS 7671
(Requirements for electrical installations, The IEE Wiring Regulations. (Seventeenth
Edition)), and gas installations shall comply with the requirements of The Institution of
Gas Engineers Utilization Procedures (IGE/UP).

2.2 Off-site Testing of Components

Where British Standards stipulate testing of items of equipment to demonstrate

compliance, these shall be carried out at the manufacturer' s works or elsewhere as
appropriate. In all cases, test certificates shall be submitted in duplicate to the Engineer
and be included in the Record Documents. In certain cases, where appropriate, type test
certificates will be accepted as indicated.

Test certificates shall serve as a record that the item referred to has been shown under
test to meet the requirements of this Specification and/or British Standards as applicable
and shall be dated, numbered and clearly referenced to the item tested by means of
serial, chassis, or other manufacturer' s reference number permanently marked in a
conspicuous position.

Where an individual inspection or test takes place at the manufacturer' s works, a

representative of the Engineer shall normally be required to be present.

Tests shall be made at the Contractor' s or supplier's premises, on samples of materials

and components to be installed in the Works in any manner deemed necessary by the
Engineer to ensure conformity with this Specification. The results of such tests shall in no
way relieve the Contractor of his responsibilities to ensure that all materials and
components used in the Works are entirely suitable for the applications and conditions of
operation.

All control panels shall be checked at the manufacturer' s works and certified to comply
with the particular specification prior to despatch. Functional checks shall also be carried
out at the manufacturer' s works to ensure that all inter-locking and sequencing is in
accordance with the performance requirements. Test jumpers, where fitted, shall be
removed at the end of the checking. Documentary evidence of compliance with short
circuit ratings shall also be provided.

Refer to Module 01 of this document with regard to standard items applicable to all
packages.

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 Where a discrepancy arises between the information provided in the Module 1 and this
works Module, the information contained herein will take precedence.

2.2.1 Earth Bonding

Bonding of all extraneous conductive parts of the installation (including metallic pipework,
ductwork, insulation cladding, and so on) shall be carried out in accordance with BS 7671
and BS 7430: “Code of practice for earthing”.

2.2.2 ‘As Built' Drawings

The Contractor shall provide ' As Built' drawings in the number, format and media
specified in the Particular Specification.

Unless otherwise indicated, the drawings shall show the following:

• The complete installation including the sizes and routes of all ductwork and
pipework,
• The location and identification number of all dampers,
• The location and identification number of all terminal units, fan coil units,
grilles, registers and diffusers,
• The location and identification number of each pipework isolating,
regulating and control valve according to the labelling and circuit control
diagram(s) required by the Specification,
• The location and identification of services buried within the structure or
underground,
• The manufacturer' s name, model and type number and full details of duty
and rating for all items of plant including control equipment.

Each drawing shall include the name of the Site, section of the Works, the title of the
installation, the date of completion of the Works, the contract number and the name of the
Contractor, and shall clearly show the words ' AS BUILT' .

During the course of the Works the Contractor shall maintain a fully detailed record of all
changes from the tender drawings to facilitate easy and accurate preparation of the ' As
Built'drawings and to ensure that these drawings are in all respects a true record of the
installation. The symbols used for individual '
As Built'drawings shall be identified on each
drawing.

2.2.3 Identification of Services

Pipework shall be identified by colour band code and/or symbols in accordance with
BS 1710.

All pipework shall be identified by colour bands at least 25 mm wide. The bands shall be
spaced and located to permit ready identification of the services, particularly adjacent to
equipment positions, at all valves, at service junctions, at wall penetrations and at all
changes of direction.

In addition, all pipework in plant rooms and service areas shall be indelibly and legibly
marked with black or white letters and arrows, to show the type of service and the
direction of fluid flow. Lettering shall be 50 mm in height or of pipe nominal bore where
this is smaller. All water storage vessels shall be properly labelled in accordance with the
requirements of the Particular Specification.

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 The letters F and R shall be added to pumped distribution to show flow and return
respectively. All symbols shall conform to the legend on the '
As Built'drawings and plant
room valve charts.

2.2.4 Installation

The installation of all material and equipment shall be in accordance with the
requirements of the manufactures in all instances.

The contractor shall ensure that all equipment is supplied complete with all requisite
components to provide a completed system and shall also ensure that any plant,
material, fixings, fuel, and so on, required to complete the installation is obtained to
facilitate the relevant installation.

Prior to installing plant and equipment the contractor is to satisfy themselves that the
location is suitable for the installation, free from water and dust and sealed from the
external climatic conditions as required.

Any conditions that may jeopardise the installation shall be brought to the attention of the
contract administrator at the earliest possible time.

Ensure that the installation meets the design intention and is in accordance with the
approved shop drawings. Pay particular attention to large plant items where space
provision may be allocated for future use/extensions and where services have been
coordinated on the design drawings so that any deviation from the design may impact
other services.

2.2.4.1 Installation Issues for Liquid Systems

All pipework/appliances and controls shall be installed so as not to obstruct users.

Pipework and fixings shall be enclosed to deter vandalism and avoid accidental damage.
Services shall be colour banded in accordance with BS 1710.

BS 1710 – Specification for identification of pipelines and services

2.2.4.2 Prevention of Backflow and Contamination in Liquid Systems

Appropriate backflow prevention arrangements and devices shall be selected in relation

to the fluid category, appliance and system design as in Table 1 below (refer also to the
Water Regulations Guide). Water delivered shall not be liable to become contaminated
and contamination of the water undertaker’s supply shall not occur. Related to this, the
following issues need to be addressed in the installation requirements:

• No cross-connection shall occur between pipes conveying water supplied

by the water undertaker with pipes conveying water from another supplier.
• Stagnation, particularly at high temperatures, shall not occur.
• Pipes and cisterns containing non-wholesome water shall be marked or
colour coded in accordance with BS 1710.
• Colour identification will be placed at all junctions, inlets/outlets of valves
and appliances, and where pipes pass through walls at points adjacent to
both wall surfaces.
• An appropriate backflow prevention device shall be installed where pipe
carrying non-wholesome water is to be connected to one carrying
wholesome water.

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 Table 1: Requirements for Backflow Prevention
Type Backflow Prevention Device Requirement
BA Verifiable backflow preventer Check that a Type AA air gap will be
with reduced pressure zone provided between the relief outlet port and
(RPZ) the top of the tundish.
CA Non-verifiable disconnector Check that a Type AA air gap will be
with different pressure zones provided between the relief outlet port and
the top of the tundish.
DA Anti-vacuum valve Check that the device will be fitted on a
Type A up stand with the outlet not less
than 300 mm above the discharge point or
spill-over level. Check that no valve, flow
restrictor, or tap will be fitted on the outlet of
the device.
DB Pipe interrupter with vent and Check that the device will be fitted with the
moving element lowest point of the air aperture not less than
300 mm above the discharge
point or spill-over level. Check that no valve,
flow restrictor, or tap will be fitted on the
outlet of the device.
DC Pipe interrupter with permanent With the exception of urinals, check that the
atmospheric vent device will be fitted with the lowest point of
the air aperture not less than
300 mm above the discharge point or spill-
over level. Check that no valve, flow
restrictor, or tap will be fitted on the outlet
of the device. For urinals check that the
device will be fitted not less than 150 mm
above the sparge outlet.
DUK1 Anti-vacuum valve combined Check that the device will be fitted on a
with verifiable check valve Type B up stand with the outlet not less
than 300 mm above the discharge point or
spill-over level. Check that no valve, flow
restrictor, or tap will be fitted on the outlet of
the device.
LA Pressure air inlet valve Check that use will be limited to locations
where operational waste is acceptable,
such as gardens or similar.
LB Pressurised air inlet valve Check that use will be limited to locations
combined with check where operational waste is acceptable,
valve downstream such as gardens or similar.

Appropriate backflow prevention arrangements or devices shall be fitted for any

appliance, fitting or process. This is with the exception of water heaters that allow
expanded water to flow back into the supply pipe; vented water storage vessels (supplied
from a storage system) or where the water temperature in the cistern or supply pipe does
not exceed 25°C.

Adequate air gaps shall be provided where required, such as for cisterns, basins and
baths.

Backflow prevention devices shall not normally be located outside premises – with the
exception of types HA and HUK1 for protection against fluid categories 2 and 3.

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 Vented or verifiable devices or a device with relief outlets shall not be installed in
chambers below ground level or where flooding is possible.

Backflow prevention devices, such as an RPZ valve (see Table 1 above) for fluid
category 4 shall be provided with line strainers immediately upstream.

Servicing valves shall be fitted upstream of line strainers and immediately downstream of
the backflow prevention device.

Where a reduced pressure zone valve is fitted, the relief outlet shall terminate with a Type
AA air gap located a minimum of 300 mm above the ground or floor level.

Requirements in Table 1 for backflow prevention devices shall be met.

2.2.4.3 Installation Precautions to Prevent Legionella

The storage temperature, controlled from a thermostat, should be 60°C.

Thermometer or immersion pockets shall be fitted on the flow and return to the calorifier
and in the base of the calorifier in addition to those required for control.

Notices warning of possible high temperature may be required.

Water temperatures should not exceed 55°C at taps (lower temperatures are applicable
for applications such as health care and schools where occupants are vulnerable to
scalding).

Where a recirculation/shunt pump is used in conjunction with a calorifier in order to avoid

temperature differences (stratification) ensure that the pump is only switched on during
periods of no demand. The pump should not run during water draw-off as temperature
stratification will help to maintain the design supply temperature.

The hot water circuit(s) shall be correctly balanced, if necessary using double regulating
valves and thermal balancing valves.

2.2.4.4 Access and Maintenance to Backflow and Contamination Prevention Devices

Backflow devices shall be accessible for inspection, testing, maintenance and renewal.
Backflow prevention devices shall not be buried in the ground.

2.2.4.5 Installation Issues for Water Softeners

Water softeners should be installed near the incoming supply pipe near to drain access.

Where ion exchange water softeners are installed this should be downstream of the
supply to drinking water points or other equipment or processes which do not require
softened water.

For water softeners installed in dwellings, a single check-valve shall be installed to

protect the water supply from backflow. For buildings other than dwellings, the
appropriate backflow protection should be provided in accordance with the appropriate
fluid category as stated in the local utility requirements.

A sampling point or tap shall be provided on the softened supply from the water softener.

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2.2.4.6 Access and Maintenance of Water Softeners

Pipework shall be provided to bypass the method of water treatment for use in the event
of a failure or during maintenance.

Sufficient space shall be provided for access for maintenance.

2.2.4.7 Access and Maintenance for Cold Water Systems

Sufficient access shall be provided to cisterns for installation, commissioning, testing and
maintenance.

Cisterns shall have reasonable access to the inside so that it may be easily inspected
and cleaned, and so that the float operated valve (or other comparable device) may be
easily adjusted, repaired or renewed.

Cisterns shall be fitted with a rigid, close fitting and securely fixed cover that is not airtight
but excludes light and insects.

All valves, including any backflow prevention devices, shall be readily accessible for
examination, commissioning, testing and maintenance.

Large storage cisterns shall have internal/external access ladders provided where
necessary Hand railing shall be provided around tops of tall cisterns where there is a
danger of falling from height.

Requirements for access for future pipe repainting shall be considered (ideally in the
method statements).

2.2.4.8 Access and Maintenance for Hot Water Systems

In addition to the measures for cold water systems, pipework to the services shall be
sited where possible to enable inspection and repair.

Sufficient flushing and chemical cleaning supply points and drains shall be provided.

Drain points shall be installed at low points.

2.2.4.9 Access and Maintenance Issues for Prevention of Legionella

Small cisterns shall be provided with a removable cover for inspection of the cistern and
maintenance of the float-operated valve.

Provision shall be made for cleaning internal surfaces of cisterns without major
interruption. Where continuous cold-water service is required a small break-tank sized for
the maximum draw-off rate may be required. This will allow the supply to be taken
temporarily from the break tank whenever maintenance is needed on the main storage
cistern.

Internally-flanged sectional cisterns shall not be used, as they are difficult to clean.

Adequate access to strainers, water softeners and filters shall be provided.

Accumulator vessels on hot and cold-water services shall be fitted with diaphragms that
are accessible for cleaning. Two pipe models are preferable as they provide a through-
flow.

Page 15
 Pipework shall be installed to permit inspection so that the thermal insulation can be
checked to confirm that it is in position and undisturbed.

Calorifiers should have easy access for inspection, draining, dismantling and cleaning. A
large drain or dump valve at the lowest point is required to allow rapid draining and
removal of sludge. Calorifier designs that minimise the scope for the entrapment of
sludge should be specified.

Accumulator vessels on pressurised systems should be fitted with diaphragms that are
accessible for cleaning. Two-pipe models are preferable to ensure through flow.

2.3 Site Inspections

Site inspections shall be carried out as required by the particular specification.

2.3.1 Staff Training

Following satisfactory testing and commissioning of the installation and prior to the
occupation of the building, maintenance staff will be trained in the use of the equipment.

This training may be performed on the Site or at manufacturer’s premises and shall form
practical and theory based training as appropriate.

Adequate notification shall be given to the client to ensure the most suitable persons are
available for the training.

2.3.2 Commissioning

2.3.2.1 Overall Requirement

All plumbing and sanitary services shall be commissioned in accordance with the
procedures set out in CIBSE Commissioning Codes, BSRIA Commissioning Guides,
Commissioning Specialists Association Guidance or other such equivalent references,
and the various supporting codes and guidance documents specified therein.

A Commissioning Management plan shall be prepared and submitted as one of the

scheduled method statements required by Module 01. The Commissioning Management
plan shall include a commissioning specification which describes the detailed
requirements with which the various commissioning services have to comply (the
commissioning work), and specific requirements for system testing. The commissioning
specification should refer to drawings, schedules and the relevant parts of the
Commissioning Codes, guides and other standards. If necessary, specialist
commissioning advice shall be obtained on the commissioning plan.

Commissioning is defined as “The advancement of an installation from the state of static

completion to full working order to the specified requirements. It includes the setting-to-
work of an installation, the regulation of the system and the fine tuning of the system.”

Commissioning Management is defined as “the planning, organisation, co-ordination and

control of commissioning activities”.

For the purposes of commissioning activity Testing is defined as the measurement and
recording of system parameters to assess specification compliance.

The Contractor shall be responsible for fully commissioning each system.

Page 16
 The entire commissioning procedure shall be performed to the satisfaction of the
Engineer and the Contractor shall demonstrate that the installation of any portion thereof,
which has been set to work, complies with the requirements of this Specification.

A Legionella Risk Assessment shall be made on completion of the installation.

2.3.2.2 Distribution Systems – Water Piping

Prior to regulation, pipe systems shall be modified as necessary and in accordance with
good pipework practice, so that flow rates with all valves fully open are within 50% above
the design values.

After all water systems have been regulated, the final settings are to be recorded on the
Commissioning Certificates provided.

Building services plant and control systems should be inherently commissionable and the
commissioning requirements shall be identified in the detailed design. Manufacturers
shall provide commissioning information as part of the delivery documentation supplied
with any component or system.

The contractor shall allow sufficient time for the complete commissioning process and
ensure integration of the commissioning process into the overall programme.

All instruments shall be provided by the Contractor or his Commissioning Specialist, and
evidence of the accuracy of the test instruments shall be provided. Test methods shall be
demonstrated to the Engineer where required.

The Contractor shall submit to the Engineer a schedule detailing the equipment which he
or his Commissioning Specialist proposes to use in the testing and commissioning of the
services and the test methods to be employed. This shall form part of the commissioning
plan.

Testing and commissioning of major items of proprietary plant or specialist equipment

shall be carried out by the manufacturer’s personnel and witnessed by the
Commissioning Specialist. The Engineer shall be advised of such activities.

2.3.2.3 Commissioning of Specialist Equipment

All instruments shall be provided by the Contractor or his Commissioning Specialist, and
evidence of the accuracy of the test instruments shall be provided. Test methods shall be
demonstrated to the Engineer where required.

The Contractor shall ensure that all commissioning work carried out on specialist
equipment by the manufacturer’s personnel is completed to his satisfaction, to the
satisfaction of the Commissioning Specialist and to the satisfaction of the Engineer.

Testing and commissioning of major items of proprietary plant or specialist equipment

shall be carried out by the manufacturer’s personnel and witnessed by the
Commissioning Specialist. The Engineer shall be advised of such activities.

The Contractor shall submit to the Engineer a schedule detailing the equipment which he
or his Commissioning Specialist proposes to use in the testing and commissioning of the
services and the test methods to be employed.

Page 17
2.3.2.4 Cleaning

Pre-operational chemical cleaning of water systems shall be carried out by a specialized

agent. For chemical cleaning requirements see BSRIA Application Guide AG8/91.

2.3.2.5 Commissioning of Cold Water Systems

The system shall be disinfected in accordance with BS 6700.

The system shall be commissioned in accordance with CIBSE Commissioning Code W

and BSRIA AG 2/89.3 where relevant.

CIBSE, Commissioning Code W. Water Distribution Systems. 2003. ISBN 1903287391

BSRIA AG 2/89.3. Commissioning Water Systems in Buildings. 2002. ISBN 086022
584 4

Information shall be included in the operating and maintenance manual and water quality
monitoring log book, including an indication of factors that will influence the frequency of
maintenance actions.

2.3.2.6 Additional Commissioning Requirements for Hot Water Systems

There needs to be sufficient space for safe installation and maintenance of the calorifier
and associated plant and equipment. There is a Defence Estates standard: MOD, DEO
(W), Space Requirements for Plant Access, Operation and Maintenance, Defence Works
Functional Standards, design & maintenance guide 08, HMSO 1996. ISBN 0 11 772785 7
The normal operating storage water temperature will not exceed 65°C.

Levels of chlorine (for sterilisation purposes) shall not exceed that specified in HSE
ACOP L8.

Adequately-sized expansion vessels shall be provided for unvented hot water storage
systems when required.

Thermostatic mixer valves shall be fitted to outlets. If they are not, a permanent warning
sign stating ‘Very Hot Water’ shall be fitted on the wall by the outlet of the appliance.
Outlet temperatures shall meet the occupant’s needs. Lower and higher temperatures are
required in hospitals, schools, and homes for the elderly. For hospitals and other
healthcare buildings the requirements of HTM 2027 shall be met.

2.3.2.7 Commissioning Records

The results of all checks and measurements shall be recorded in writing by the
commissioning engineer as commissioning proceeds, together with any appropriate
commentary. Records of all commissioning activities shall include details of tests
undertaken and results achieved. Records shall include calibration certificates for all
instruments used during the commissioning process.

Test results shall be recorded on Commissioning Certificates provided and countersigned

by the Engineer.

It is recommended that the format of record sheets should be agreed before testing and
commissioning commences. A pro forma for these records may be compiled from the
relevant Commissioning Code for each particular installation.

Page 18
 Record sheets should be completed once only (i.e. not subsequently transcribed by
typing since this can lead to errors being introduced). Where hand written records are
subsequently transcribed into typed format there shall be a formal checking process
carried out to validate their accuracy.

On completion of commissioning the contractor shall provide to the Engineer a

commissioning report containing documentary evidence that the requirements of the
commissioning specification have been met. This shall accompany the complete set of
record sheets for the commissioning process and specific requirements, for incorporation
into the O&M manuals.

2.3.2.8 Legionella Risk Assessment

A Legionella Risk Assessment shall be made on completion of the installation, based on

CIBSE TM13, “Minimising the risk of Legionnaires'disease”.

The entire commissioning procedure shall be performed to the satisfaction of the

Engineer and the Contractor shall demonstrate that the installation of any portion thereof,
which has been set to work, complies with the requirements of this Specification.

Note: The commissioning report should indicate that the requirements of the
commissioning specification have been met. A properly annotated copy of the
commissioning specification, developed contemporaneously with the commissioning
works and referring to the commissioning records should be accepted as a
commissioning report.

2.4 Completion and Handover

Irrespective of the time of initial testing and commissioning the contractor shall ensure
that within the defects liability period he returns to the Site and undertakes re-testing of
the identified equipment during peak (winter or summer, whichever is applicable) load
conditions.

For all major equipments, such as central water heaters, boilers and large equipments,
the simulated performance test shall be carried out at the factory and passed. Testing
figures shall be submitted along with the unit.
Major equipments proposed by the Contractor shall be of a reputable manufacturer,
having a good service and after-sale set-up.

The proposed make and type shall have been used in the Kingdom of Bahrain for at least
seven years with a good performance record.

Throughout the defects liability period the contractor may receive notification by the client
that various faults have arisen in the system. These shall be attended to within the
minimum amount of time.

The Contractor shall carry out a thorough detailed examination of the installations during
the eleventh and twelfth month of the defects liability period and shall put right any
outstanding works or defects that might have occurred under the Defects Liability Period
in the Conditions of Contract.

On completion of such works, and agreement that the requirements of the Conditions of
Contract and Specification have been met, the Engineer will authorize a Certificate of
Making Good Defects.

Page 19
 To facilitate the final handover the client must be in complete possession of all record
information and the O&M manuals.

When the Contractor has demonstrated to the Engineer and to their complete satisfaction
that the works are operating as intended within the design limits and tolerances of the
manufactured items, then the Engineer will issue a certificate of taking over, subject to
the clearance of any outstanding items or defects within 14 days of the date of the
Certificate. At this time the responsibility for the operation of the plant will pass from the
Contractor to the Client or as otherwise agreed with the Engineer.

3. PART 3 SUMMARY

3.1 Submittals

3.1.1 Type Approval

The following types of information are required for approvals, as shown in Table 2:

• Adequate information of the supplier’s organization to allow pre-

qualification.
• Adequate information of the Specialist Contractor organization to allow
pre-qualification.
• Statement or checklist confirming compliance with the Contract.
• Manufacturer’s certified type tested data for specific items of equipment or
components.
• Country of origin where item of equipment or component is manufactured.
• Dimensioned drawings of the item of equipment indicating all critical or
major dimensions.
• Shop drawings showing connecting or interfacing services or equipment
demonstrating correct location, positioning and adequate provision for
maintenance access, operational needs and service connections.
• Performance data certified by the manufacturer’s R & D section and is not
catalogue data.
• Any necessary applicable third party approval documentation such as
independent testing organizations. For example Fire and Life Safety
testing, Underwriters Laboratories (UL), Factory Mutual (FM), Loss
Prevention Council, British Board of Agreement.
• Where applicable those items of equipment to be factory tested are to be
programmed with agreed dates and suit the construction program.
• A list of projects of similar nature on which the item has been successfully
installed.
• An offer by the Contractor for a visit, to similar installations, to allow
inspection of the item in operation.
• Sample Warranty.
• Adequate information of the detailed warranty that will be offered in order
to ensure all contractual obligations are met.
• Lead time and delivery program.
• Full and detailed lead time for an item of equipment showing all time
periods within the delivery period, including all necessary transportation
times, customs clearance along with approval periods, manufacturing
times testing and acceptance.
• Adequate data of installation requirements. This could include handling
and protection requirements and assembly of major components.
• Samples of specific items as directed.

Page 20
• Data confirming special finishes on items of plant and equipment such as
protective coatings for saline atmospheres, corrosive atmospheres or
specific colours to suit interior design.

Page 21
 Identification
Fuel Systems
Liquid Systems

Swimming Pools
Water Treatment

Thermal Insulation
Solid Waste Disposal

Fire Fighting Systems

Borehole / Well Water

Supports and Brackets

Liquid / Water Disposal

Sound and Vibration Control

Fountains and Water Features
Suppliers Pre-qualification
documentation
Specialist Contractor Pre-
Qualification

Compliance Statements

Certified Type Tested Data

Country of Origin

Dimensioned Manufacturers
Drawings

Associated Shop Drawings

Manufacturers Certified Performance

Table 2: Requirements for Type Approval

Data
rd
Copy of 3 Party Approvals

Program of Factory tests and

proposed dates
Provide Detailed List of Projects on
Which Equipment Has Been Used
Offer to engineer to visit similar
installation or factory to witness
operation
Provide Sample Warranty

Lead Time and Delivery Programme

General Installation Data

Provide Sample of Item or

Page 22

Component

Special Finishes
 Identification
Fuel Systems
Swimming Pools
Water Treatment

Thermal Insulation
Fire Fighting Systems
Borehole / Well Water

Supports and Brackets

Sound and Vibration Control

Fountains and Water Features Suppliers Pre-qualification
documentation
Specialist Contractor Pre-
Qualification

Compliance Statements

Certified Type Tested Data

Country of Origin

Dimensioned Manufacturers
Drawings

Associated Shop Drawings

Manufacturers Certified Performance

Data
rd
Table 2: Requirements for Type Approval (Cont’d)

Copy of 3 Party Approvals

Program of Factory tests and

proposed dates
Provide Detailed List of Projects on
Which Equipment Has Been Used
Offer to engineer to visit similar
installation or factory to witness
operation

Provide Sample Warranty

Lead Time and Delivery Programme

General Installation Data

Page 23

Provide Sample of Item or

Component

Special Finishes
3.1.2 Delivery Control, Storage, Handling and Protection

The following requirements shall be submitted as in Table 3.

• All necessary data shall be provided to demonstrate the correct delivery control,
storage, handling and protection.
• Any necessary documentation shall be provided including custom clearances,
inspection reports, prior to shipping, after shipping and transport company
paperwork, and so on.
• Adequate hazard and risk data shall be provided that identifies any physical,
chemical, and biological or other such hazards associated with him item being
delivered. This should include all necessary procedures for eliminating hazard or
reducing risk.
• Inspection shall be made when item first delivered to the Site or at agreed storage
facility.
• Full documentation shall be provided in the form of a report on the condition of the
delivered item. This could include photography.
• An itemised list shall be provided of any ancillaries, spare parts, components, tools,
and so on, delivered with the item required for assembly or installation for example
temperature sensors and energy meter.
• Internal, external, air-conditioned or secure storage, or a combination thereof, for the
delivered item shall be provided.
• All necessary documentation shall be provided at the time of delivery. Original
copies to be provided and to be issued to the Engineer. These documents shall form
the basis of the overall record documentation.

Page 24
 Identification
Fuel Systems
Liquid Systems

Swimming Pools
Water Treatment

Thermal Insulation
Solid Waste Disposal

Fire Fighting Systems

Borehole / Well Water

Supports and Brackets

Liquid / Water Disposal

Sound and Vibration Control

Fountains and Water Features

Delivery Control, Handling, Storage

and Protection Method Statement
Delivery Documentation

Hazard / Risk Data Sheet

Request for Inspection

Delivery Inspection / Condition

Inspection Report
Ancillaries Included

Page 25
Internal Storage

External Storage

Air Conditioned Storage

Secured Storage
Table 3: Requirements for Delivery Control, Handling, Storage and Protection

Factory Inspection and Testing

Reports
Setting to Work Procedure

O&M Instructions

Warranty
3.1.3 Requirements for Methodology and Workmanship

The following requirements shall be submitted as in Table 4.

• Acceptance shall be confirmed with Engineer of the use of specialist installation

contractors, e.g. fire and life safety installations.
• All necessary builders works drawings shall be provided to enable routing of
services, installation of plant, and so on.
• Drawings shall be provided on adequate detail to ensure installation can be made
allowing for coordination with other services, structure and architecture.
• Details shall be provided, discussed and agreed with site Safety Officer all potential
risk for site installation, working and storage areas.
• Site supervisor staff shall be informed by use of a schedule of when progress
inspections are to be made.
• A programme shall be provided detailing all site tests for applicable items of
equipment, sub-systems, complete systems and whole building to demonstrate
completeness of installation and operation of installations.
• Prior to completion of static installation, procedures shall be prepared and agreed for
setting to work of all items of equipment and systems, taking into account any
phasing of works.
• Procedures shall be provided as how equipment and systems are to be regulated to
achieve or operate to design condition. Regulation is to follow setting to work and to
be on adherence/compliance to design parameters.
• Commissioning procedures shall be provided refining the regulation procedure in
order to optimize equipment and system operation for efficiency and energy
consumption to meet actual conditions within the building.
• All commissioning measurements shall be provided for all equipment and systems
on approved standard forms/commissioning manual.
• Testing equipment calibration certificates shall be provided as directed.
• Lifting and access equipment test certificates shall be provided as directed.
• The List of headings and contents list for the O&M Manuals shall be provided for
agreement.
• Full statement shall be provided on the status of the practical completion of the
installations for agreement. The statement is to include a schedule of any
outstanding works.

Page 26
 Identification
Fuel Systems
Liquid Systems

Swimming Pools
Water Treatment

Thermal Insulation
Solid Waste Disposal

Fire Fighting Systems

Borehole / Well Water

Supports and Brackets

Liquid / Water Disposal

Sound and Vibration Control

Fountains and Water Features
Specialist Installations Contractor
Confirmation
Method Statement for Installation
and Quality of Workmanship
Builders work Drawings

Shop Drawings

Site Installation Risk Assessment

Schedule of Progress Inspections

Programme of Site Tests with

Proposed Action Dates
Setting to Work Procedure

Regulation Procedure
(Using Design Parameters)
Commissioning Procedure
Table 4: Requirements for Methodology – Installation and Workmanship

Record / Document Final

Commissioning Measurements
Testing Equipment Calibration
Certificates
Lifting and Access Equipment Test
Certificates
List of Headings for O&M Manuals

Practical Completion Statement

Page 27

Schedule of Outstanding Works

3.1.4 Completion and Handover

All record documentation shall be provided,as collected throughout the contract duration.
The records are to be indexed and collated. The records shall include the following, as
scheduled in Table 5 below:

• Final commissioning measurement data

• Test reports
• Inspection reports
• All Method Statements and Installation procedures
• Final /last material and shop drawing submittals
• Final originals of standard I year and extended warranties
• Record drawings
• Operating and Maintenance instructions
• Planned preventive maintenance schedules
• Emergency contact details / telephone numbers
• Service contracts
• Staff training schedule
• Final handover statement

During and at the end of the defects liability period, the following shall also be provided:

• Recommissioning schedule. All equipment and systems are to be

recommissioned during the defects liability period. A project finishes at any
time in the calendar year and the commissioning may not be optimal
conditions as either peak or minimum part load conditions are truly
experienced or full occupancy achieved.

• Final handover report. This is any amendment to the initial handover report
and shall include the results of any re-commissioning, completion and
rectification of any defects, status of the condition and maintenance of the
systems at the end of the defects liability period.

Page 28
 Identification
Fuel Systems
Liquid Systems

Swimming Pools
Water Treatment

Thermal Insulation
Solid Waste Disposal

Fire Fighting Systems

Borehole / Well Water

Supports and Brackets

Liquid / Water Disposal

Sound and Vibration Control

Fountains and Water Features
Final Commissioning Measurements
and Data
Test Reports

Inspection Reports

All Method Statements and

Installation Procedures
(Final) Material and Shop Drawing
Submittals
Final Copies of Warranties
(Standard 1 year)
Final Copies of Warranties
(Extended)
Record Drawings
Table 5: Requirements for Completion and Handover

Operating and Maintenance

Instructions
Planned Preventative Maintenance
Schedules
Emergency Contact Details
Telephone Numbers
Service Contracts

Staff Training Schedule

Initial Handover Statement

Mid-Liability Period Re-

Commissioning Schedule
Final Handover Report
Page 29
3.2 References

Reference Title

BS EN 31 Pedestal wash basins. Connecting dimensions

BS EN 32 Wall-hung wash basins. Connecting dimensions

BS EN 35 Pedestal bidets with over-rim supply. Connecting dimensions

BS EN 36 Wall-hung bidets with over-rim supply. Connecting dimensions

BS EN 198 Sanitary appliances. Baths made from crosslinked cast acrylic

sheets. Requirements and test methods

BS EN 274 Waste fittings for sanitary appliances

BS EN 295 Vitrified clay pipes and fittings and pipe joints for drains and
sewers
Part 1 Requirements
Part 2 Quality control and sampling
Part 3 Test methods
Part 4 Requirements for special fittings, adaptors and compatible
accessories
Part 5 Requirements for perforated vitrified clay pipes and fittings
Part 6 Requirements for vitrified clay manholes
Part 7 Requirements for vitrified clay pipes and joints for pipe jacking
Part 10 Performance requirements
BS 460 Cast iron rainwater goods. Specification
BS 569 Specification for asbestos-cement rainwater goods
BS EN 588 Fibre-cement pipes for sewers and drains
Part 1 Pipes, joints and fittings for gravity systems
Part 2 Manholes and inspection chambers
BS EN 598 Ductile iron pipes, fittings, accessories and their joints for
sewerage applications. Requirements and test methods
BS EN 607 Eaves gutters and fittings made of PVC-u. Definitions,
requirements and testing
BS EN 612 Eaves gutters with bead stiffened fronts and rainwater pipes
with seamed joints made of metal sheet
BS EN 671 Fixed fire fighting systems. Hose systems
BS 750 Specification for underground fire hydrants and surface box
frames and covers
BS EN 752 Drain and sewer systems outside buildings
BS EN 806: Part 2 Specification for installations inside buildings conveying water
for human consumption. Design
BS 853 Specification for vessels for use in heating systems
BS EN 1253 Gullies for buildings
Part 1 Requirements
Part 2 Test methods
Part 3 Quality control
Part 4 Access covers
Part 5 Gullies with light liquids closure

Page 30
BS EN 997 WC pans and WC suites with integral trap
BS EN 1036 Glass in building. Mirrors from silver-coated float glass for
internal use
BS EN 1057 Copper and copper alloys. Seamless, round copper tubes for
water and gas in sanitary and heating applications
BS EN 1092 Flanges and their joints
BS 1125 WC flushing cisterns (including dual flush cisterns and flush
pipes
BS EN 1151: Part 1 Pumps. Rotodynamic pumps. Circulation pumps having a rated
power input not exceeding 200 W for heating installations and
domestic hot water installations. Non-automatic circulation
pumps, requirements, testing, marking
BS 1188 Ceramic wash basins and pedestals
BS 1189 Baths made from porcelain enamelled cast iron
BS EN 1254 Copper and copper alloys. Plumbing fittings
BS EN 1329 Specification for plastic piping systems for soil and waste
discharge (low and high temperature) within the building
structure
BS EN 1462 Brackets for eaves gutters. Requirements and testing
BS EN 1710 Specification for identification of pipelines and services
BS 1876 Specification for automatic flushing cisterns for urinals
BS 3868 Specification for prefabricated drainage stack units in
galvanized steel
BS 4514 Unplasticized PVC soil and ventilating pipes of 82.4 mm
minimum mean outside diameter, and fittings and accessories
of 82.4 mm and of other sizes. Specification
BS 5255 Specification for thermoplastics waste pipe and fittings
BS 5257 Specification for horizontal end-suction centrifugal pumps (16
bar)
BS 5306 Code of practice for fire extinguishing installations and
equipment on premises
Part 1 Hose reels and foam inlets
Part 2 Specification for sprinkler systems
Part 4 Specification for carbon dioxide systems
Part 6.1 Fire extinguishing installations and equipment on premises.
Foam systems. Specification for low expansion foam systems
Part 6.2 Fire extinguishing installations and equipment on premises.
Foam systems. Specification for medium and high expansion
foam systems
Part 8 Selection and installation of portable fire extinguishers. Code of
practice
BS 5504 Wall hung WC pan
BS 5911 Precast concrete pipes, and ancillary concrete products
Part 1 Specification for unreinforced and reinforced concrete pipes
(including jacking pipes) and fittings with flexible joints
Part 3 Specification for unreinforced and reinforced concrete
manholes and soakaways
Part 4 Specification for unreinforced and reinforced concrete
inspection chambers
Part 5 Specification for prestressed non pressure pipes and fittings
with flexible joints
Page 31
Part 6 Specification for road gullies and gully cover slabs
BS 6340 Shower units
BS 6391 Specification for non-percolating layflat delivery hoses and hose
assemblies for fire fighting purposes
BS 6465 Sanitary installations
Part 1 Code of practice for the design of sanitary facilities and scales
of provision of sanitary and associated appliances
Part 3 Code of practice for the selection, installation and maintenance
of sanitary and associated appliances
BS 6700 Design, installation, testing and maintenance of services
supplying water for domestic use within buildings and their
curtilages. Specification.
BS 7158 Plastic inspection chambers for drains and sewers.
Specification
BS 7291 Thermoplastics pipes and associated fittings for hot and cold
water for domestic purposes and heating installations in
buildings
BS 7430 Code of practice for earthing
Part 1 General requirements
Part 2 Specification for polybutylene (PB) pipes and associated fittings
Part 3 Specification for cross-linked polyethylene (PE-X) pipes and
associated fittings
Part 4 Specification for chlorinated polyvinyl chloride (PVC-C) pipes
and associated fittings and solvent cement
BS 7671 Requirements for electrical installations. IEE Wiring
Regulations. Seventeenth edition
BS 8300 Design of buildings and their approaches to meet the needs of
disabled people – Code of practice.
BS 9251 Sprinkler systems for residential and domestic occupancies.
Code of practice
BS 9990 Code of practice for non-automatic fire-fighting systems in
buildings
BS EN 12094 Fixed firefighting systems. Components for gas extinguishing
systems
BS EN 12200 Plastics rainwater piping systems for above ground external
use. Unplasticized poly (vinyl chloride) (PVC-U)
BS EN 12416 Fixed firefighting systems. Powder systems
BS EN 12845 Fixed firefighting systems. Automatic sprinkler systems. Design,
installation and maintenance
BS EN 12897 Water supply. Specification for indirectly heated unvented
(closed) storage water heaters
BS EN 13121 GRP tanks and vessels for use above ground
BS EN 13310 Kitchen sinks. Functional requirements and test methods
BS EN 13364 Natural stone test methods. Determination of the breaking load
at dowel hole
BS EN 13451 Swimming pool equipment
Part 3 Additional specific safety requirements and test methods for
pool fittings for water treatment purposes
BS EN 13476 Specification for plastics piping systems for non-pressure
underground drainage and sewerage
BS EN 60730 Automatic electrical controls for household and similar use
Page 32
BS EN 60335: Part 1 Household and similar electrical appliances. Safety. General
requirements

Other references

BSRIA AG 4/94. Guide to Legionellosis – Temperature Measurements for Hot and Cold
Water Services. 1994. ISBN 0 86022 366 3
BSRIA TN 6/96. Ionisation Water Treatment for Hot and Cold Water Services. 1996. ISBN 0
86022 438 4
BSRIA AG 19/00. Guide to Legionellosis – Operation and Maintenance. 2000. ISBN 0 86022
547 X
BSRIA AG 20/00. Guide to Legionellosis – Risk Assessment. 2000. ISBN 0 86022 561 5
BSRIA AG 21/00. Legionellosis Control Log Book. 2000. ISBN 0 86022 562 3
CIBSE, Guide C: Reference Data. CIBSE 2001. ISBN 0750653604
CIBSE, Guide G: Public Health Engineering. CIBSE 2004. ISBN 1 903287 42 1
CIBSE, TM 13: Minimising the Risk of Legionnaires’ Disease – Section 5: Hot and Cold
Water Services. CIBSE 2002. ISBN 1 903287 23 5
HSC, L8: The Control of Legionella Bacteria in Water Systems. Approved Code of Practice
and Guidance. HSE 2000. ISBN 0 7176 1772 6
The Institute of Plumbing. Plumbing Engineering Services Design Guide. The Institute of
Plumbing 2002. ISBN 1 871956 40 4. (Now Institute of Plumbing and Heating Engineering.)
NHS Estates. HTM2027. Hot and Cold Water Supply Storage and Mains Services. 1995
Water Regulation Advisory Scheme. Water Fittings and Materials Directory

Commissioning References

Automatic control systems: CIBSE Commissioning Code C

Bacteria Within Closed Circuit/Pipework Systems Guidance Note: Commissioning
Specialists Association GN/4
Dicks M Commissioning Management: How to achieve a fully functioning building BSRIA AG
5/2002
Commissioning of water systems in buildings: BSRIA Commissioning Guide AG 2/89.2
Commissioning of pipework systems – design considerations: BSRIA Commissioning Guide
AG 20/95
Health and Safety Legislation Affecting Commissioning: Commissioning Specialists
Association TM/5
Pre-commissioning cleaning of water systems: BSRIA Commissioning Guide AG 8/91
Standard specification for the commissioning of mechanical engineering services
installations for buildings: Commissioning Specialists Association T/M 1
Water Distribution Systems: CIBSE Commissioning Code W
Water Treatment and the Commissioning Engineer: Commissioning Specialists Association
TM/9CIBSE TM13, “Minimising the risk of Legionnaires'disease”

Page 33
Abbreviations
ACB Air Circuit Breakers EMC Electromagnetic Compatibility
ACOP Approved Code of Practice EPDM Ethylene-propylene-diene-monomer
ACRIB Air Conditioning and Refrigeration Industry copolymer
Board FA Fresh Air
ADCM Acoustic Doppler Current Meters FBA Factory Built Assembly
AFMA Australian Fisheries Management Authority FRP Fibre Reinforced Polymer
AGMA American Gear Manufacturers’ Association FSC Forest Stewardship Council
AISI American Iron and Steel Institute GANA Glass Association of North America
AS Acceptance Strength GGBS Ground Granulated Blast-furnace Slag
ASTA Association of Short-circuit Testing Authorities GMS Galvanized Mild Steel
ASTM American Society for Testing Materials GRC Glass Reinforced Cement/Glass Reinforced
ATS Automatic Transfer Switch Concrete
AWS American Welding Society GRP Glass Reinforced Plastics
BASEC British Approval Service for Electric Cables HCFC Hydrofluorocarbons
BOCA Building Officials and Code Administrators HDPE High Density Polyethylene
BRE Building Research Establishment Ltd. HEPA High Efficiency Particulate Air
BS British Standards HFC HydroFluoroCarbon
BSRIA Building Service Research and Information HPL High Pressure Laminate
Association HPPE Higher Performance Polyethylene
CBR California Bearing Ratio HRC High Rupturing Capacity
CCTV Close Circuit Television HSE Health and Safety Executive
CECOMAF Comité Européen des Constructeurs de HSFG High Strength Friction Grip
Matériel Frigorifique HV High Voltage
CENELEC Comité Européen de Normalisation HVCA Heating and Ventilating Contractors’
Electrotechnique Association
CFC Chlorofluorocarbons ICBO International Conference of Building Officials
CIBSE Chartered Institution of Building Services IGCC Insulating Glass Certification Council
Engineers IGE/UP Institution of Gas Engineers – Utilization
CHW Chilled Water Procedures
CI Cast Iron IP Ingress Protection
CLW Cooling Water ISAT Initial Surface Absorption Test
CM Current Margin / Communication cable ISO International Standard Organization
CMP Communication cable (Plenum) ITP Inspection Testing Plan
CP Code of Practice KD Kiln Dried
CPC Circuit Protection Conductor kVA Kilovolt Ampere
CPT Cone Penetration Testing LCD Liquid Crystal Display
CRS Categorised Required Strength LED Light Emitting Diode
CRT Cathode Ray Tube LPG Liquid Petroleum Gas
CRZ Capillary Rise Zone LS0H Low Smoke Zero Halogen
CT Current Transformer LSF Low Smoke and Fume
c(UL) Underwriters Laboratories Incorporated LV Low Voltage
(Canada) MCB Miniature Circuit Breaker
DEO Defence Estate Organisation MCC Motor Control Centre
DFT Dry Film Thickness MCCB Moulded Case Circuit Breakers
DI Ductile Iron MDF Medium Density Fireboard
DIN Deutsches Institut für Normung MDD Maximum Dry Density
DPC Damp Proof Course MDPE Medium Density Polyethylene
DPDT Differential Pressure, Differential Temperature MEP Mechanical Electrical Plumbing
DS Durability Strength MICC Mineral Insulated Copper Covered Cable
DVR Digital Video Recorder MIO Micaceous Iron Oxide
DW Ductwork Specification MMI Man Machine Interface
EA Exhaust Air MOD Ministry of Defence
ECMA European Computer Manufacturers MS Micro-silica
Association MSDS Material Safety Data Sheet
EA Exhaust Air MSRPC Moderate Sulphate Resistance Portland
ECMA European Computer Manufacturers Cement
Association N Nitrogen
ECR Extra Chemical Resistant NDFT Nominal Dry Film Thickness
EIA Environmental Impact Assessment/Electronic NEMA National Electrical Manufacturers’ Association
Industries Alliance NFPA National Fire Protection Association

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NRC Noise Reduction Coefficient
NS Norwegian Standard
O/D Outside Diameter
ODP Ozone Depletion Potential
OFS Oil Fired (Appliance/Equipment) Standard
OFTEC Oil Firing Technical Association
O&M Operation and Maintenance
OPC Ordinary Portland Cement
PD Published Documents
PE Polyethylene
PFA Pulverised Fuel Ash
PFC Power Factor Correction
PM Project Manager
PTFE Polytetrafluoroethylene
PVC Polyvinylchloride
PVC-u Unplasticised Polyvinylchloride
PWTAG Pool Water Treatment Advisory Group
QA/QC Quality Assurance/Quality Control
RA Return/Recycled Air
RCCD Residual Current Circuit Breaker
RCD Residual Current Device
R&D Research and Development
REFCOM Register of Companies Competent to handle
refrigerants
RPM Reinforced Plastic Mortar
RPZ Reduced Pressure Zone
RTD Resistant Temperature Detector
RTR Reinforced Thermosetting Resin
SA Supply Air
SBCCI Southern Building Code Congress
International (Incorporated)
SDR Standard Dimension Ratio
SIS Swedish Institute of Standards
SP Super-plasticizing
SPDT Single Pole Double Throw
SRPC Sulphate Resistance Portland Cement
SS Structural Strength
SSPC Steel Structures Painting Council
TIA Telecommunication Industry Association
TRA Trussed Rafter Association
UL Underwriters Laboratories Incorporated
ULPA Ultra Low Penetration Air
UP Unsaturated Polyester Resin
UPS Uninterruptible Power Supply
UTP Unshielded Twisted Pair
UV Ultra Violet
VC Vitrified Clay
VR Video Recorder
WBP Weather and Boil Proof
W/C Water Cement Ratio
WIS Water Industry Specification
WP Water Proofing
WRAS Water Regulations Advisory Scheme
XLPE Cross Linked Polyethylene

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