SKIM AKREDITASI MAKMAL MALAYSIA (SAMM)

LABORATORY ACCREDITATION SCHEME OF MALAYSIA

SC 1.5 – SPECIFIC CRITERIA FOR ACCREDITATION OF

MECHANICAL TESTING AND NON-DESTRUCTIVE
TESTING (NDT)
Issue 2, 30 April 2020

(Supplementary to MS ISO/IEC 17025)

MS ISO/IEC 17025

JABATAN STANDARD MALAYSIA

Department of Standards Malaysia
TABLE OF CONTENTS
Page
Introduction 1
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 General requirements 1
5 Structural requirements 1
6 Resource requirements 2
6.1 General 2
6.2 Personnel 2
6.3 Facilities and environmental conditions 3
6.4 Equipment 4
6.5 Metrological traceability 5
6.6 Externally provided products and services 5
7 Process Requirements 5
7.1 Review of requests, tenders and contracts 5
7.2 Selection, verification & validation of methods 5
7.3 Sampling 6
7.4 Handling of test or calibration items 6
7.5 Technical records 6
7.6 Evaluation of measurement uncertainty 6
7.7 Ensuring the validity of results 6
7.8 Reporting of results 6
7.9 Complaints 6
7.10 Nonconforming work 6
7.11 Control of data and information management 6
8 Management system requirements 6
Appendix 1 8
Appendix 2 15
Bibliography 24
Acknowledgements
Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Introduction

The SC 1.5 document sets out the specific requirements for a mechanical testing and/
or Non-Destructive Test (NDT) laboratory need to comply with.

This document shall be read in conjunction with MS ISO/IEC 17025, Skim Akreditasi
Makmal Malaysia (SAMM) policies and other relevant requirements published by
Department of Standards Malaysia (Standards Malaysia).

The clause numbers in this document correspond to those of MS ISO/ IEC 17025 but
since not all clauses require additional requirements, the numbering may not be
continuous.

1 Scope

Standards Malaysia accreditation does not constitute a blanket approval of all

laboratory’s activities. Therefore, it is necessary to identify those activities for which
accreditation are granted. The classes of test provide the framework within which
the scope of accreditation is expressed.

These classes and subclasses do not constitute any restriction on the work that a
laboratory can perform, but provide a convenient means of expressing a
laboratory's recognised capability.

Classes of test appropriate to mechanical testing and NDT laboratories are listed in
Appendix 1. These classes are an arbitrary subdivision of the potential range of
activities involved in mechanical testing and NDT laboratories on the basis of the
types of samples being tested, the scientific disciplines involved, and the test
methods employed.

2 Normative reference

MS ISO/IEC 17025 - General requirements for the competence of testing and

calibration laboratories.

The undated references indicate the latest edition of the referenced documents,
including any amendments.

3 Terms and definitions

None.

4 General requirements
Same as in MS ISO/IEC 17025.

5 Structural requirements
Same as in MS ISO/IEC 17025.

SC 1.5, Issue 2, 30 April 2020 Page 1 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

6 Resource requirements

6.1 General
Same as in MS ISO/IEC 17025.

6.2 Personnel

6.2.1 Mechanical and/or NDT testings shall be performed by competent personnel

or supervised by authorised personnel.

6.2.2 On-going competence should be monitored on regular basis. Records on

competency shall be available. Where a method or technique is not in regular
use, verification of personnel performance before testing is necessary.

6.2.3 Particular attention shall be given to the following aspects:

(a) There shall be clearly defined and recognisable lines of authority and
responsibility within the organisation, with each personnel being aware of
both the extent and the limitations of their own responsibility.

(b) Laboratory personnel shall only be allocated duties that commensurate

with their knowledge and experience. They shall be provided with the
direction or supervision needed for effective performance of their duties.
Authorisation and up to date competency records (training records) shall
be available for all personnel carrying out testing work.

(c) Competency of personnel is assessed by peer review during practical

demonstrations. Some areas of expertise, where tests involve technical
judgement e.g. NDT, shall meet standard or regulatory requirements as
prerequisites.

6.2.4 Approved Signatory

Same as requirements in clauses 4 and 5 of SAMM Policy (SP6) -

Requirements for SAMM Approved Signatory. In addition,

(a) The laboratory shall have at least one laboratory personnel who is
qualified as approved signatory in the testing being undertaken.
Requirements for Approved Signatories are detailed in SAMM Policy 6.

(b) The signatories for NDT shall be qualified, have 2 years of relevant
supervisory experience and certified to minimum:

i) NDT certification Level II of Sijil Kemahiran Malaysia by Jabatan

Pembangunan Kemahiran (Department of Skills Development) or
equivalent NDT certification schemes by any qualification bodies
certified to ISO 9712, such as Personnel Certification in Non-
Destructive Testing (PCN) by British Institute for Non-Destructive
Testing (BINDT) or ASNT Central Certification Program (ACCP) by
American Society for Non-destructive Testing (ASNT) or Australian

SC 1.5, Issue 2, 30 April 2020 Page 2 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Institute for Non-Destructive Testing (AINDT), etc.

ii) In addition to i) above, personnel performing radiographic testing shall

obtain approval from the Atomic Energy Licensing Board (AELB).
Note:
The requirements of AELB may be referred in http://www.aelb.gov.my/malay/dokumen/notis-
pemberitahuan/Bil032013.pdf. The latest edition of the referenced document, including any
amendments applies.

6.3 Facilities and environmental conditions

Same as requirements in MS ISO/IEC 17025.

6.3.1 When highly precise measurements are to be made, the following factors may
assume greater importance:

(a) Isolation from sources of mechanical vibration and shock likely to have a
detrimental effect on sensitive instruments (e.g. high accuracy balances).

(b) Adequate ventilation when fumes are created by the tests such as in
bitumen testing.

(c) Temperature and humidity control of the laboratory as specified in the

relevant test method (e.g. paper testing).

(d) Protection from excessive levels of dirt and dust.

(e) Suitable equipment and areas for the preparation of test specimens such
as in tensile testing and metallography.

(f) Isolation from stray electric and magnetic fields, particularly for
thermocouples, strain gauges and other sensitive low output devices.

(g) Electromagnetic interference between items of test equipment and

computers.

6.3.2 Safety

Some types of tests have very specific safety requirements, which shall be
met, e.g. radiographic, and these may be subject to regulatory requirements.

Other tests will have less specific but otherwise significant safety concerns,
e.g. compression tests on concrete. It is expected that accredited laboratories
will have considered, and provide appropriate safety procedures to cover
items such as:

(a) Noise - from equipment such as mechanical sieve shakers and

compaction hammers.

(b) Ventilation - adequate air flows in controlled environments - protection

from corrosive or toxic fumes.

SC 1.5, Issue 2, 30 April 2020 Page 3 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

(c) Personal Protection - safety clothing, etc.

(d) Physical Protection - safety screens on equipment such as compression

testers.

Note:
Occupational Safety and Health Act 1994 (Act 514) and Factories and Machinery Act 1967-
revised 1974 (Act 139) places specific legal obligations on all employers, including
laboratories. Safety is outside the scope of accreditation and will not be assessed during an
on-site laboratory accreditation assessment. If, in the opinion of the assessment team, a
safety issue is observed during an assessment, it will be reported to the laboratory, as
required by the Acts. The reporting of a safety issue will not indicate that a comprehensive
safety assessment has been carried out.

6.4 Equipment
Same as in MS ISO/IEC 17025.

6.4.1 Guidelines on calibration requirements and recalibration intervals for

equipment are detailed in Appendix 2. The guidelines set out maximum
periods of use before equipment must be recalibrated. Further details are in
ILAC-G24 Document.

6.4.2 Reduced or extended calibration intervals may be accepted based on factors

such as history of stability, accuracy required and ability of personnel to
perform regular checks. It is the responsibility of the laboratory to provide
clear evidence that its calibration system, and any changes to an existing
system, will ensure that confidence in the equipment can be maintained.

6.4.3 Equipment that is sensitive to movement, such as force, impact, hardness

testing machines, heat enclosures and balances, will generally require full
recalibration if they are moved.

6.4.4 A laboratory, which uses a computerised testing system, shall comply with the
following criteria:

(a) The optimum calibration procedure for physical testing systems will
depend upon the accessibility of individual components of the system,
especially their input or output signals.

If a testing instrument cannot be isolated from the data processing

system, the system as a whole shall be calibrated either statically or
dynamically. Calibrating the complete system is the preferred alternative.

If the testing instrument can be isolated from the data processing system,
each component of the system can be calibrated or verified separately.
The testing instrument can be calibrated (again, statically, or dynamically)
in the conventional manner and a separate verification of the data
processing system, including any interfacing systems, can be undertaken.

(b) The computer programme should be comprehensive in its coverage of

the testing process and should have been checked at points covering the

SC 1.5, Issue 2, 30 April 2020 Page 4 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

whole range of likely inputs and outputs.

(c) The programme should allow the operator to detect errors in data input
and to monitor the progress of the test.

(d) The system should be capable of being checked for error-free operation
with respect to data capture, data processing, and freedom from sources
of external interference. Where appropriate, manually checked data sets
(or artefacts) should be available for regular system checks.

6.5 Metrological traceability

Same as in MS ISO/IEC 17025 and SAMM Policy (SP2) - Policy on the
Traceability of Measurement Results.

6.6 Externally provided products and services

Same as in MS ISO/IEC 17025.

7 Process requirements

7.1 Review of requests, tenders and contracts

Same as in MS ISO/IEC 17025.

7.2 Selection and verification of methods

(a) Accreditation is normally granted only for internationally or nationally

accepted standard test methods or non-standard methods (in-house
methods) that have been appropriately verified/validated, and which are
performed regularly. Refer to Table 1. The extent of a laboratory's scope
of accreditation will therefore vary with the range of work performed, the
scope and complexity of the tests involved, the competence and
organisation of laboratory personnel and the level of technology available
in the laboratory.

(b) In-house methods could include but are not restricted to:

i) methods developed in the laboratory;

ii) methods developed by customer/manufacturer;

iii) methods developed for an industry group;

iv) modified standard test methods; and

v) method published in the scientific literature with/without any

performance data.

(c) Validation of test methods shall involve, as appropriate, the use of

certified reference materials, participation in inter-laboratory comparison/
proficiency test programmes, comparison with standard test methods,
determination of method precision, limits of detection, uncertainties of

SC 1.5, Issue 2, 30 April 2020 Page 5 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

measurement, etc.

(d) Standard test methods should be used whenever possible in order to

ensure comparability of test results among laboratories.

(e) For NDT, the procedures shall be approved and authorised by NDT level
III personnel. The NDT instructions shall be approved by either a Level II
or a Level III personnel.

7.3 Sampling
Same as in MS ISO/IEC 17025.

7.4 Handling of test and calibration items

Same as in MS ISO/IEC 17025.

7.5 Technical Records

Same as in MS ISO/IEC 17025.

7.6 Evaluation of measurement uncertainty

Same as in MS ISO/IEC 17025 and SAMM Policy (SP5) - Measurement
Uncertainty Requirements for SAMM Testing Laboratories.

Evaluation of measurement uncertainty is not required where test results are

qualitative (i.e. nonnumeric such as pass/fail or fracture/no fracture), unless
it is required by a testing standard or customer’s specification.

7.7 Ensuring the validity of results

Same as in MS ISO/IEC 17025 and SAMM Policy (SP4) - Policy for
participation in proficiency testing activities.

7.8 Reporting the results

Same as in MS ISO/IEC 17025.

7.9 Complaints
Same as in MS ISO/IEC 17025.

7.10 Nonconforming work

Same as in MS ISO/IEC 17025.

7.11 Control of data and information management

Same as in MS ISO/IEC 17025.

8 Management system requirements

Same as in MS ISO/IEC 17025.

SC 1.5, Issue 2, 30 April 2020 Page 6 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Table 1: Validation or Verification requirements based on methods selected

Validation or
Verification
Test Method Description requirements Method Reference No/ID (Example)

Confirmation of <Method>, <year/edition>,

published <section no.> e.g.:
Standard published method
performance MS 1: 1996 Clause 12.2 ASTM A370-
characteristics 03a
In-house test method

Method developed <In-house method>, <ref. no.> e.g.:

Full validation
by laboratory In-house method: 1234-A
<In-house method>, <ref. no.><based
on xxxx >
Method developed by
Full validation In House Method e.g.:
customer/manufacturer
In-House Method MGT/001/ES-X 60210
Based on MS 30: Part 5: 1995, Section 2

Absence of
performance Full validation <Method>, <year/edition> e.g.:
Method characteristics ASME VIII UCS (56)
develop
ed for an <Method>, <year/edition>,
industry <section no.> e.g.:
group Confirmation of published
API 2H-1993 Annex S-4 ASME
performance characteristics
B30.20: 2006
Section 20-1.3.8

<In-house method>, <ref. no.>, <based on

std. method>,
<technique (sample preparation &
Modified standard methods Full validation
detection, where applicable)> e.g.:
In-house method QMCL/014/2007 based
on MS 522: Part 2:2005 Clause 3

Confirmation of
Method published in the
published <In-house method>, <ref. no.>, <based
scientific literature with
performance on xxxx >
any performance data
characteristics e.g.:
In house method ABC, based on Practical
Method published in Guidebook for Radioisotope-based
the scientific literature Technology in Industry, IAEA/RCA
Full validation
without any RAS/8/078 March 1999.
performance data

SC 1.5, Issue 2, 30 April 2020 Page 7 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Appendix 1

Classes of Testing: Mechanical and NDT

A. Mechanical Testing

Mechanical and physical testings of material/ products that include metallurgical tests
to determine the elemental analysis and microstructures.

Note: * All tests referring to relevant products standard

1. Metals and metal products 7. Ceramic products

Bend and re-bend Abrasion
Brinell hardness Crazing
Charpy impact Dimensional
Compression, transverse and shear Flushing
Drop-weight Glazing
Fracture toughness Loading
Micro hardness Marking
Rebound hardness Staining
Rockwell hardness Tolerance
Stress-rupture Warpage
Superficial Rockwell hardness Others
Vickers hardness
Tensile 8. Concrete (fresh and hardened)
Others Abrasion resistance
Air content
2. Welds and welded test specimens Cement content
Bend Creep
Corrosion Compression
Cracking Density
Drop-weight Drying shrinkage
Fillet-break Flexural strength
Fracture toughness Flow table
Hardness Initial surface absorption (ISAT)
Impact Modulus of elasticity
Macroscopic examinations Rapid chloride permeability (RCPT)
Nick-break Sampling
Shear Setting time
Tension Slump
Others Splitting tensile
Standard consistence
3. Lifting gear, chain, wire rope and fittings Water absorption
Breaking Load Water permeability
Proof load Others
Tension
Others 9. Cement / concrete based products
Abrasion
4. Fibre rope and cordage Breaking
Tension Compressive strength
Others Dimension
Dynamic
5. Springs and energy absorbing devices Fire propagation / resistance
Compression Flexural
Tension Load
Torsion Sampling
Others Shrinkage
Splitting
6. Threaded fasteners Water absorption
Dimension Others
Drive
Proof load 10. Refractories
Stripping Cold crushing strength
Tensile Density and porosity
Tension-torque Durability
Torsion Hydrogen diffusivity
Others Modulus of elasticity
Modulus of rupture
Particle Size Determination (PSD)
Others

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

11. Rocks 15. Timber and timber products

Compressive strength Bending strength
Elastic moduli Block shear
Petrographic examination Compression strength
Point load strength Delamination
Strength Density
Others Flexural strength
Modulus of elasticity
12. Cements and pozzolanic materials Moisture content
Air content Reaction to fire
Compressive strength Rolling shear strength and stiffness
Fineness Shear strength
Flexural Specific gravity
Sampling Stress grading timber
Setting time Tensile strength
Soundness Torsion
Standard consistence Others
Water absorption
Others 16. Building boards and plywood
Adhesion of plies
13. Bituminous materials and Bituminous pavement Bonding
(solid and liquid) Density and moisture content
Abrasion Fire resistance
Bitumen extraction Flexural strength
Bitumen short term aging Joint strength
Brittleness Load
Ductility Shear strength
Elastic recovery Tensile strength
Flash and fire point Water resistance
Float Others
Fraass breaking point
Long term aging (pressure aging vessel) 17. Glass and glass products
Loss on heating Acid and alkaline
Marshall stability Annealing point and strain point
Penetration Boil
Polish stone value Dimension and shape
Rheology Drop ball
Sampling Emissivity
Softening point Fragmentation
Specific gravity Opacity
Thickness Pendulum impact
Viscosity Softening point
Water content Sound
Others Static puncture
Surface compression
14. Soils Visible light/solar transmittance
California Bearing Ratio (CBR) Weathering
Classification Others
Compaction (Proctor)
Consolidation 18. Clays and clay products
Density Abrasion
Field density (FDT) Breaking strength
Linear shrinkage Performance
Liquid limit Chemical and staining
Moisture content Modulus of Rupture
Outdoor weathering reactivity Compression
Plastic limit Crushing
Sampling Dimension
Specific gravity Flexural
Strength Porosity and shrinkage
Others Water absorption
Water leakage
Others

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

19. Aggregates 22. Gypsum and gypsum products

Aggregate crushing value (ACV) Adhesion
Aggregate impact value (AIV) Compressive strength
Angularity number Core cohesion at high temperature
Bulk density and water absorption Dimension
Sieve analysis Flexural strength
Chloride content Flow table
Clay, silt and dust content Hardness
Degradation tests Setting time
Elongation Shear strength
Fine particle size distribution Water absorption
Flakiness index Others
Friable particle
Light weight particle 23. Textiles and related products
Los Angeles value Colour fastness
Methylene blue Flammability
Moisture content Sampling
Organic impurities Tension
Petrographic examination Tear burst
Polished stone value Wear
Potential alkali reactivity by mortar bar Others
Sampling
Sand equivalent 24. Tyres
Shell content Bead unseating resistance
Soundness Dimensional
Sulphur content Endurance
Ten percent fines value (TFV) High speed performance
Wet/dry strength ratio Load/speed
Others Plunger energy
Strength
20. Pulpwood, pulp, paper, paperboard and products Treadwear indicators
Adhesives Others
Burst
Compression 25. Automative parts
Liquid absorption Accelerated exposure
Mechanical properties Adhesion of coating
Optical properties Cleanliness
Permeability Damp heat, cyclic
Sampling Damp heat, steady state
Surface properties Dry heat
Tear Heat aging
Tension Heat resistance
Others Humidity resistance
Low temperature resistance
21. Rubber and related products Random vibration
Abrasion Rapid change of temperature
Ageing and environmental Resonance frequency detection
Belting Salt Spray
Brittleness Scoring and condensation
Compression Solvent resistance friction
Curing characteristics with oscillating disc Solvent resistance immersion
Rheometer Temperature cycle
Density and specific gravity Vibration Endurance
Elastomeric bearings Vibration Function (sinusoidal)
Electrical resistivity Others
Flammability
Flexing 26. Seat belts and similar devices
Hardness Abrasion
Low temperature Adjusting force
Mooney Accelerated Storage Hardening Test Breaking strength
(MASHT) Corrosion resistance
Mooney viscosity Durability
Ozone resistance Dust resistance
Plasticity retention index (PRI) Dynamic
Sampling Exposure to water
Shear Microslip
Swelling in liquids Releasing force
Tear Retracing force
Tension Strength
Tension set Temperature conditioning
Viscosity Tilt lock
Vulcanisation characteristics Vehicle sensitivity
Wallace Accelerated Storage Hardening Test Webbing sensitivity
(WASHT) Others
Others

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

27. Personal Protective Equipment (PPE) 29. Environmental Tests

Conditioning
a. Safety Footwear & Occupational Footwear Erosion
Abrasion resistance Noise
Behaviour of toecaps Vibration
Breaking strength of shoelace Others
Compression resistance
Construction 30. Plastics and related products
Flexing resistance Ageing and environmental
Heat insulation Bend
Height of the upper
Burst
Hydrolysis
Compression
Impact resistance
Insole thickness material Elongation at break
Interlayer bond strength outsole Flammability
Internal length of toecaps Flow properties
Leakproofness Hardness
Outsole thickness Heat deflection temperature
Penetration resistance Heat distortion
Seat region (design B, C, D, E) Hydrostatic internal pressure
Sole adhesion Impact strength
Specific ergonomic features Longitudinal/heat reversion
Tear strength Low temperature
Tensile properties
Melt mass-flow rate (MFR)
Thickness
Upper flexing resistance-Bally flex Sampling
Upper/outsole bond strength Shear
Water absorption/desorption Specific gravity
Water vapour permeability and coefficient Tear
Tensile strength and Yield strength
b. Protective Helmet for Motorcyclist Wear and abrasion
Chin Strap Micro-slip Others
Detaching
Dynamic 31. Leather and leather products
Impact absorption
Impact Energy Attenuation 32. Gasket, seals and packing
Penetration Fire
Projection and surface friction Gasket material
Resistance to abrasion High pressure /temperature
Retention Others
Rigidity
33. Adhesive and sealers
c. Protective Visor for Motorcyclist Adhesion of the coating (hot water soak test)
Light diffusion Cure
Luminous transmittance Peel strength
Mechanical characteristics Others
Mist retardant
Optical quality and scratch resistance 34. Adhesive tapes
Recognition of signal light
Peel adhesion strength
Refractive powers
Adhesive bond strength
Spectral transmittance
Others
28. Packages and containers
35. Pipes and pipelines, hoses, valves and fittings
Aperture and Closure
Acoustic
Compression
Adhesion
Dynamic
Burst
Fill Line Indicator
Cryogenic
Free fall drop
Dimension
Hydraulic pressure
Endurance
Internal pressure (hydraulic)
Fire
Leakproofness
Flow rate
Mechanical – shock test
Fugitive emission
Penetration
Head loss
Random vibration
Holiday detector
Righting
Hydrostatic pressure
Stability
Leak tightness
Stacking
Pneumatic pressure
Strength of handle
Others
Tear
Top Lift
Topple
Others

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

36. Mechanical tests on assemblies 41. Ferrous, non-Ferrous and metallic materials
Shear resistance of framed walls Elemental Analysis (non-chemical method)
Static test for lumber Corrosion
Strength test of panels for building construction Ferrite count
Structural performance of exterior windows / doors / Metallography
curtain walls, etc. Microstructure identification
Wind load resistance Thermal Conductivity Detector Method (TCD Method)
Others Others

37. Plumbing and drainage fittings 42. Mechanical equipment / toys and games/ sporting and
Internal pressure (hydrostatic pressure) recreational equipment / respiratory protective devices
Longitudinal reversion Functional and performance
Noise test Endurance
Pendulum impact strength
Thermal cycling 43. Catalysts and catalyst carriers
Others Surface area
Pore size
38. Furniture Others
Dimension
Durability 44. Other Tests
Impact
Safety
Stability
Strength
Others

Metallurgical

39. Microstructural tests on metallic & non-metallic

alloys
Anodizing thickness
Case depth of surface defects
Depth of cladding
Depth of surface defects
Grain size
Hydrogen embrittlement
Macroscopic examination of steel
Macroscopic examination of wrought products
Non-metallic inclusion content
Proportion of size
Resistance to stress-corrosion cracking
Susceptibility of brass to dezincification
Others

40. Coatings
Abrasion
Acoustic
Adhesion strength
Alkaline resistance
Compressive strength
Corrosion resistance
Impact and scratch resistance
In-situ concrete lining
Salt spray
Surface area
Tensile strength
Thickness
Water absorption
Water pressure
Others

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

B. Non-Destructive Testing (NDT)

Examination of material, component and assembly to detect discontinuities without

damaging the material, component or assembly.

Note: * All tests referring to relevant products standard

1. Metals and metal products 10. Cement / concrete based products

Acoustic emission testing (AET) Rebound hammer
Eddy current testing (ET) Ultrasonic pulse velocity (UPV)
Infrared thermographic testing (IRT) Others
Liquid penetrant testing (PT)
Magnetic particle testing (MT) (ferromagnetic only) 11. Refractories
Radiographic testing (RT) Rebound hammer
Ultrasonic testing (UT) Ultrasonic pulse velocity (UPV)
Visual testing (VT) Others
Others
12. Rocks
2. Welds and welded test specimens Ultrasonic pulse velocity (UPV)
Acoustic emission testing (AET) Discontinuity mapping
Eddy current testing (ET) Terrain laser scanning (TLS)
Infrared thermographic testing (IRT) Others
Liquid penetrant testing (PT)
Magnetic particle testing (MT) (ferromagnetic only) 13. Cements and pozzolanic materials
Radiographic testing (RT) Ultrasonic pulse velocity (UPV)
Ultrasonic testing (UT) Others
Visual testing (VT)
Others 14. Bituminous materials and Bituminous pavement
(solid)
3. Lifting gear, chain, wire rope and fittings Ground penetrating radar (GPR)
Liquid penetrant testing (PT) Ultrasonic pulse velocity (UPV)
Magnetic flux leakage (MFL) (ferromagnetic only) Others
Magnetic particle testing (MT) (ferromagnetic only)
Radiographic testing (RT) 15. Soils
Ultrasonic testing (UT) Nuclear density moisture gauge
Visual testing (VT) Others
Others
16. Timber and timber products
4. Fibre rope and cordage Ultrasonic pulse velocity (UPV)
Visual testing (VT) Others
Others
17. Building boards and plywood
5. Springs and energy absorbing devices Nuclear density moisture gauge
Liquid penetrant testing (PT) Others
Magnetic particle testing (MT) (ferromagnetic only)
Others 18. Glass and glass products
Ultrasonic pulse velocity (UPV)
6. Threaded fasteners Others
Liquid penetrant testing (PT) Othe
Magnetic particle testing (MT) (ferromagnetic only) 19. Rubber and related products
Others Radiographic testing (RT)
Ultrasonic testing (UT)
7. Ceramic products Others
Liquid penetrant testing (PT)
Visual testing (VT) 20. Tyres
Others Radiographic testing (RT)
Ultrasonic testing (UT)
8. Concrete (fresh) Others
Ultrasonic pulse velocity (UPV)
Others 21. Automative parts
Eddy current testing (ET)
9. Concrete (hardened) Liquid penetrant testing (PT)
Carbonation test Magnetic particle testing (MT) (ferromagnetic only)
Electromagnetic bar locator Radiographic testing (RT)
Ground penetrating radar (GPR) Ultrasonic testing (UT)
Infrared thermographic testing (IRT) Others
Radiographic testing (RT)
Rebound hammer
Ultrasonic pulse velocity (UPV)
Others

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

22. Plastics and related products Mechanical Equipment

Liquid penetrant testing (PT)
Ultrasonic testing (UT) 28. Cylinders and other pressure vessels
Others Acoustic emission testing (AET)
Infrared thermographic testing (IRT)
23. Pipes and pipelines, hoses, valves and fittings Liquid penetrant testing (PT)
Liquid penetrant testing (PT) Magnetic particle testing (MT) (ferromagnetic only)
Magnetic particle testing (MT) (ferromagnetic only) Radiographic testing (RT)
Radiographic testing (RT) Ultrasonic testing (UT)
Ultrasonic testing (UT) Visual testing (VT)
Others Others

24. Mechanical assemblies 29. Fans and blowers

Eddy current testing (ET) Vibration analysis
Liquid penetrant testing (PT) Others
Magnetic particle testing (MT) (ferromagnetic only)
Radiographic testing (RT) 30. Compressors
Ultrasonic testing (UT) Vibration analysis
Others Others

Metallurgical 31. Pumps

Vibration analysis
25. Coatings Others
Eddy current testing (ET)
Others 32. Engines & generators
Vibration analysis
Others
26. Elemental Analysis (Non-chemical Method)
Eddy current testing (ET) 33. Gas equipment & related products
X-ray Fluorescent (XRF) Liquid penetrant testing (PT)
Others Magnetic particle testing (MT) (ferromagnetic only)
Radiographic testing (RT)
Ultrasonic testing (UT)
27. Metal powders and sintered test Others
Liquid penetrant testing (PT)
Radiographic testing (RT)
Ultrasonic testing (UT)
Others

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Appendix 2

Equipment Calibration Intervals

Table 2 sets out the normal periods between successive calibrations for a number of reference
standards and measuring instruments. It must be stressed that each period is generally considered
to be the maximum appropriate in each case providing that the other criteria as specified below are
met:

a) The equipment is fit for purpose, and

b) The laboratory has both the equipment capability and personnel expertise to perform adequate
internal checks, and
c) If any suspicion or indication of overloading or mishandling arises, the equipment is checked
immediately and thereafter at frequent intervals until it can be shown that stability has not been
impaired.

Where the above criteria cannot be met, appropriately shorter intervals may be necessary. It is
possible to consider submissions for extension of calibration intervals based on factors such as
history of stability, frequency of use, accuracy required and ability of personnel to perform regular
checks. Application of the requirements of ISO 10012, Parts 1 and 2, need to be considered when
seeking an extension of intervals. Where calibrations have been performed as above, adequate
records of these measurements must be maintained.

Note: Checks or calibrations indicated * can be done internally by a laboratory providing they
possess the necessary reference equipment, documented procedure and technical competence.

Table 2 a): Calibrations interval for reference standards and measuring instruments in
mechanical testing

Calibration Checking
No. Item of equipment General comments
interval interval
1. Accelerometers One year
2. Anemometers One year
By an accredited
calibration authority.
Three years Twelve months service
recommended
3. Balances and Weighing Scales
*Each
Zero check
weighing
*One month One-point check.
*Six monthly Repeatability check.
Three months
4. Barometers
(single point)
5. Dial Gauges *Two years
6. Dies & Cutters
Extensometers
a) Level & mirror types 5 years
7. b) Micrometer screw type 5 years
c) Dial indicator type 2 years
d) Recording type (with
2 years
electrical output)

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Calibration Checking
No. Item of equipment General comments
interval interval
Force Testing Machines
Some Standards
Tension, Compression, & Universal One year specify the
recalibration period
TYPE 1 – Mechanical Force Measuring System
a) Dead weight Five years
b) Knife edge, lever and steelyard Five years
c) Pendulum dynamometer Two years
d) Chain testing and similar machines
One year
in frequent use
TYPE 2 – Hydraulic or Pneumatic Force Measuring Systems
8. a) Mechanical system incorporating a
pneumatic or hydraulic link, e.g. Two years
proportional cylinder
b) Bourdon Tube or diaphragm
Six months
pressure gauge as force indicator
c) Type (b) fitted also with a master Frequent checks by
gauge which can be disconnected One year user of working gauge
during normal testing against master gauge
d) Bourdon tube or diaphragm gauge
used only as a null detector for a Two years
mechanical system
e) Bourdon tube with Measuring
Two years
System
TYPE 3 – Electrical Force Measuring
Two years
Systems
Gauge Blocks

9. a) Used as reference standards Five years

More frequent as
b) Used as working equipment Two years
appropriate to usage.
Hardness Testers for Metals
One year BS EN 10003 (Brinell),
Daily check
a) Brinell, Vickers and Rockwell (partial) BS EN ISO 6507
when in use
machines Three years (Vickers), BS EN
10. (complete) 10109 (Rockwell)
with calibrated
b) Portable Brinell microscopes One year
graticule
*One year
c) Diamond indenters
(inspection)
Hardness Testers for Rubber Plastics and Ebonite
BS 903
a) Dead weight testers for rubber Three years
Methods N, A, L, M
b) Dead weight testers for plastics Three years
11. Frequent
checks by
user on
c) Meters (durometers) for rubber
reference
hardness
blocks
*Five years
12. Hydrometers BS 718
(one point)

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Calibration Checking
No. Item of equipment General comments
interval interval
Hygrometers
*Six months Compare
a) Assman hygrometers and sling
Five years thermometers at
type
(complete) ambient with wick dry.
13. b) Recorders accurate to ±1% RH Two years ASTM E77
Weekly (with
c) Other recorders including hair
Assman
types
hygrometer)
d) Digital instruments One year
Impact Testing Machines (Pendulum type)
a) Charpy, Izod and Universal testers One year Frequent BS EN 10045-2
for metals (complete inspection by Include verification
calibration) user. using standard test
pieces appropriate to
required operating
range(s).
14. b) Charpy and Izod testers for plastics One year Frequent
(partial inspection by
calibration) Five user.
years (complete
calibration)
Check
regularly and
c) Notching tools
whenever
reground.
Length Measuring Devices
Daily or Check against length
a) Linearly Variable Differential
whenever standard such as a
Transformers
used micrometer setting bar.
b) Micrometers (hand)
i) For measurement of diameters
*Five years
smaller than 2.5mm and
(complete)
thickness less than 1.3mm
15. ii) For measurement of diameters
*Five years
down to 2.5mm and thickness
(reference)
down to 1.3mm
*Five years
c) Rules
(reference)
d) Calipers – Vernier/Dial
*Three years
i) Reference
(reference)
Against a reference
ii) Working *Annual length standard such
as gauge bars.
Masses
a) Reference masses of integral
construction stainless steel or Five years
nickel-chromium alloy
b) Masses of screw knob or sealed
16. plug construction, made of
stainless steel, nichrome, plated Three years
brass or other non-corrodible highly
finished material
c) Masses of cast iron, carbon steel, *One year if calibrated to 1 in 104
or unplated brass *Five years if calibrated to 1 in 103

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Calibration Checking
No. Item of equipment General comments
interval interval
Standard count
*Daily (comparison against
17. Nuclear Densometers Two yearly
rolling average).
*Six monthly Drift and stability checks.
Initial PD ISO/TR 15377
Visual inspection for
*Six months damage wear or
contamination.
18. Orifice Plates
For orifice plates being
used in window testing, a
Ten years
full recalibration is
required after ten years.
Ovens
For laboratories drying
soils, a daily record of
oven temperature is
required.
a) Drying *Five years *Daily
For laboratories drying
aggregates, records
showing temperature
19. stability are required.
*Five years or
Both drying
less depending
and ageing
on permissible
ovens
tolerances
b) Ageing require full
(temperature
recalibration
variations,
after major
recovery time,
servicing.
rate of ventilation)
Pressure Gauge Testers
a) Dead weight Five years
20.
b) Manometers
i) liquid in glass Five years
ii) digital One year
Pressure and Vacuum Gauges

a) Test gauges for calibration

One year
of working gauges
21.
*Six months or
b) Working gauges subject to
less depending
shock loading
on use
c) Working gauges not subject
*One year
to shock loading
Manometers
a) Reference Five years
22. Check against reference.
b) Working *Three years Check fluid every three
years.
c) Digital *One Year

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Checking
No. Item of equipment Calibration interval General comments
interval
Proving devices for calibration of force testing machines
TYPE 1 – Elastic devices
a) Dial gauge for deflection
Two years
measurement
b) Micrometer screw for
23. deflection measurement
Five years
(mechanical or optical
indication)
c) Electrical deflection
Two years
measurement
TYPE 2 – Proving levers Two years
TYPE 3 – Weights Five years
Sieves
24. a) Reference * Initial
*One year or less
b) Working
dependent on usage
Soil Testing Machines
a) Force measurement Two years
As for appropriate
b) Displacement instrument (e.g. dial
25. measurement gauge, micrometer,
LVDT)
As for pressure and
vacuum gauges
c) Pressure measurement
(hardness of
rubber base)
Dial gauge,
Thickness Gauges
26. Two years dimensions and
(for compressible materials)
pressure of foot
Squares
Against a reference
a) Reference Five years
27. square
b) Working *Annual

Stop Watches and Clocks

a) Electric *Twelve months

28.
b) Mechanical *Three months

Straight Edges

29. a) Reference Five years

b) Strain rate meters *Six months using stop watch

a) Tachometer calibrators
Five years
(Tuning devices)
30.
b) Tachometers One year

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Calibration Checking
No. Item of equipment General comments
interval interval
Thermometers
Check ice point
Five years immediately after initial
a) Reference liquid-in-glass *Six months
(complete) calibration then at least
every six months
Check ice point
immediately after initial
calibration then at least
Five years every six months
b) Working liquid-in-glass
(complete) *Six months
or alternatively
Inter-compare with
reference thermometer at
points in the working
31. range every six months
c) Electronic (sensors that are
thermocouples, One year (full
thermistors, or other calibration)
integrated circuit devices)
Check at ice point before
use or at least every six
Five years (full
months.
calibration), or
when ice point
Working hand-held
d) Resistance drift is more than Six months
resistance thermometers
five times the
can be checked using the
uncertainty of
alternative procedure
calibration.
above for glass
thermometers.
Volumetric glassware
a) Flasks, pipette, burettes
and measuring cylinders
*Five years
used for reference
32. purposes
b) Working flasks, pipettes
*On Cross check by weighing
burettes, measuring
commissioning with distilled water
cylinders
c) Density bottles *Two years

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Table 2 b): Calibrations interval for reference standards and measuring instruments in
non-destructive testing (NDT)

Calibration Checking
No. Item of equipment General comments
interval interval
A. Ultrasonic Testing
Probe and sensory
Each time Ultrasonic standard calibration
1. electronics (setting up the
before use blocks
assembly)
As per specific standard
Standard calibration blocks
2. Initial method (e.g. EN 27963, AWS,
(material properties)
ASME or equivalent.
Visual examination for
Standard calibration blocks Each time
3. deterioration such as corrosion
(surface conditions) before use
or mechanical damage.
By an accredited calibration
Reference standard
laboratory or National
4. calibration blocks (radius and Every 5 years
Metrology Institute (NMI).
other dimensional checks)
By comparison with reference
standard calibration block. If
no reference standard
Working standard calibration Intermediate
calibration block is available,
5. blocks (radius and other checks every 2
then by an accredited
dimensional checks) years
calibration laboratory or
National Metrology Institute
(NMI).
Ultrasonic test sets
Verified
• linearity of time base
weekly or each
• linearity of equipment gains
6. time the
• sensitivity and signal to
equipment is
noise ratio
used
• pulse duration.
The
Ultrasonic probes and performance
systems characteristics
7. • probe index checked at
• probe beam angle least once per
• visual checks for damage day or before
use
Ultrasonic flaw detectors
Verified at
• linearity of time base
intervals not
8. • linearity of amplifier
exceeding
• accuracy of calibrated twelve months
attenuator

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Calibration Checking
No. Item of equipment General comments
interval interval
B. Magnetic Particle Testing
Valid manufacturer’s certificate
Magnetic particle solution
9. Each batch with conformance to a standard
(visible/fluorescence)
(e.g. BS, ASTM or EN).
Valid manufacturer’s certificate
with conformance to a relevant
10. Magnetic inks (for aerosols) Each batch standard. Flux indicators should
be used to demonstrate the
direction of flux.
Magnetic particle As per specific standard method
11. Each shift
concentration check (e.g. ASTM, BS)
Visible light level intensity
12. Check the level of illumination
checks on the test surface As per specific standard
using a calibrated light meter
Black light level intensity check method (e.g. ASTM, BS)
13. each time before use.
on the test surface
14. UV(A) light meter (Reference) By an accredited calibration
Yearly laboratory or by National
15. White light meter (Reference) Metrology Institute (NMI)
Check by measuring the lifting
Permanent magnet and power or pull-off force in
16. 6 monthly
magnetic yokes accordance with a relevant
standard.
Once calibrated for life.
Reference Weights (for
17. Initial Calibrate by means of a
checking strength of magnet)
calibrated balance.
18. Gauss meter By an accredited calibration
Yearly laboratory or National Metrology
19. Ammeter Institute (NMI).

C. Radiographic Testing
Gamma Ray – Source Size Manufacturer’s certification with
20. Initial
X-Ray – Focal Spot Size official record of dimensions.
Calibrate against a reference
density strip, which is calibrated
21. Densitometer 90 days by an accredited calibration
laboratory or National Metrology
Institute (NMI).
By an accredited calibration
As manufacturer’s
laboratory or National Metrology
recommendation,
22. Film density strip Institute (NMI)’ where available.
whichever is
Note: Date of first usage of strip
earlier.
to be recorded.
As required by the Atomic
23. Survey meters Yearly
Energy Licensing Board (AELB).
As required by the Atomic
24. Gamma projector Yearly
Energy Licensing Board (AELB).
As required by the Atomic
25. X-ray machine Yearly
Energy Licensing Board (AELB).
Digital Radiographic.
* Optical Density Step By an accredited calibration
Once every 5
26. Wedges laboratory or National Metrology
years
* Optical Line Pair Test Institute (NMI).
Pattern

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Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Calibration Checking
No. Item of equipment General comments
interval interval
D. Penetrant Testing
Valid manufacturer’s certificate
with conformance to a relevant
Non-fluorescent (aerosol)
27. Each batch standard. Where possible
penetrant dyes
verification against Penetrant
Comparator Block.
Manufacturer’s certificate with
conformance to a relevant
Each batch /
28. Fluorescent dyes standard. Where possible
per work day
verification against Penetrant
Comparator Block.
29. Reference UV(A) light meter By an accredited calibration
Yearly
laboratory or ‘National Metrology
30. Reference White light meter Institute (NMI)’, where available.

31. UV(A) light meter (Working)

By comparison with reference
90 days
light meter
32. White light meter (Working)

E. Eddy current Testing

Manufacturer’s certification,
33. Reference Specimen Initial customer’s requirements or
measurement certificate.
Before usage
and
Verified against a reference
34. Equipment subsequently
specimen
after 8 hours
of usage

SC 1.5, Issue 2, 30 April 2020 Page 23 of 24

Specific Criteria for Accreditation of Mechanical Testing and Non-Destructive Testing (NDT)

Bibliography

1. MS ISO/IEC 17025 - General requirements for the competence of testing and

calibration laboratories.

2. ISO/IEC 17043 - Conformity assessment - General requirements for proficiency

testing.

3. ISO 9712 - Non-destructive testing - Qualification and certification of NDT

personnel.

4. ISO 10012 - Measurement management systems - Requirements for

measurement processes and measuring equipment.

5. JCGM 100 - Evaluation of measurement data - Guide to the expression of

uncertainty in measurement.

6. ILAC-G24 - Guidelines for the determination of calibration intervals of measuring

instruments.

7. EA Document - EA-4/15 G Accreditation for Non-Destructive Testing.

8. IANZ Specific Criteria for Accreditation - Mechanical Testing.

9. IANZ Supplementary Criteria for Accreditation - Mechanical Testing Laboratories

(Non- Destructive Testing).

10. SAC-SINGLAS - NDT 003 - Quality Assurance of Equipment Commonly Used in

Non-Destructive Testing laboratories.

SC 1.5, Issue 2, 30 April 2020 Page 24 of 24

 ACKNOWLEDGEMENTS

1. Dr. Afidah Abu Bakar (Chairman) Standards Malaysia

2. Ms. Rosnieh Eggat (Secretariat) Standards Malaysia

3. Dr. Mohamad Pauzi bin Ismail Standards Malaysia

4. Mr. Wong Siew Kwan Standards Malaysia

5. Dr. Norhayati Moris Standards Malaysia

6. Mr. Mohamad Akhir bin Abdullah Ikram QA Services Sdn. Bhd.

7. Ms. Seri Banun Sujangi MMC Gamuda

Makmal Ujian Bahan Binaan,

8. Mr. Mohd Zahari Bin Shariffudin
CIDB Holdings Sdn. Bhd.

9. Mr. Syuhaizat Md. Ali Lembaga Getah Malaysia (LGM)

10. Mr. Dalha Rahmat SIRIM QAS International Sdn Bhd.