Astm c1086
Astm c1086
Astm c1086
1. Scope
1.1 This specification covers glass fiber unsupported
needled felt (mechanically bonded) binder-free insulation for
thermal insulation. This material is used as the thermal
insulation component in the fabrication of insulation systems
for use on machinery and equipment, such as steam turbines,
boilers, boiler feed pumps, and piping at temperatures from
ambient up to 1200F (650C).
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
and are not considered standard.
1.4 See Supplementary Requirements for modifications to
paragraphs in this standard when using Specification C 1086 in
lieu of the United States Department of Defense, Department
of Navy, Naval Sea Systems Command, in Washington, DC.
Military Specifications No.(s) MIL-I-16411F.
2. Referenced Documents
2.1 ASTM Standards:2
C 167 Test Methods for Thickness and Density of Blanket
or Batt Thermal Insulations
C 168 Terminology Relating to Thermal Insulation
C 177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of
the Guarded-Hot-Plate Apparatus
C 335 Test Method for Steady-State Heat Transfer Properties of Pipe Insulation
C 390 Practice for Sampling and Acceptance of Thermal
Insulation Lots
1
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.23 on
Blanket and Loose Fill Insulation.
Current edition approved May 1, 2009. Published June 2009. Originally
approved in 1987. Last previous edition approved in 2008 as C 1086 08.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standards Document Summary page on
the ASTM website.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
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Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C 1086 09
5.1.5 Any special packaging information.
6. Materials and Manufacture
6.1 The material shall consist of 100 % glass fiber needled
into insulation felts without the use of binders. No organic
fibers and no glass or mineral shot shall be included in the
product. It is acceptable for the insulation felt to be composed
of laminates formed without the use of binders. The glass fibers
shall meet the designation C, Continuous Filament Yarns, in
accordance with Specification D 578 (see Note 1).
6.2 The fiber diameter of the glass fiber used in the final
product, when determined in accordance with the Filament
Diameter section of Specification D 578 shall conform to the
requirements of Table 1. The certification of the diameter of the
fiber is to be provided in one of two ways: either by the felt
manufacturer or by certification of the glass fiber supplier and
documentation by the manufacturer as to sources of supply.
6.3 All materials used shall be asbestos and ceramic (refractory) fiber-free.
NOTE 1The fibers from glass composition designated as E glass
(electrical glass) in the range from D through G meet the requirements of
Tables 1 and 2.
7. Physical Properties
7.1 When tested in accordance with Section 16, the insulation shall conform to the physical requirements listed in Table
2.
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8. Performance Characteristics
8.1 Any of the following conditions can result in damage to
the needled glass fiber insulation:
8.1.1 Direct exposure to hydrofluoric acid.
8.1.2 Prolonged direct exposure to strong caustics.
8.1.3 Prolonged exposure to boiling water.
8.2 Conditions outlined in 8.1 are mentioned only to make
the user aware of such applications that require special
consideration. Contact the insulation manufacturer for recommendations when the above conditions are anticipated.
9. Other Requirements
9.1 Supplementary requirements include qualification tests
and acceptance tests to special standards. These supplementary
requirements are made by agreement to the supplier and the
purchaser only when specified in the purchase order or
contract.
10. Standard Sizes and Dimensions
10.1 ThicknessThe insulation shall be furnished in the
thicknesses shown in Table 3.
10.2 Insulation LengthUnless otherwise specified, the
insulation shall be furnished in rolls of the lengths given in
Table 3.
TABLE 1 Requirements for Diameter of Fiber
Diameter of Fiber
Average diameter shall not exceed
90 % shall be less than
Inch (Millimetre)
0.00036 (0.009)
0.00040 (0.102)
See Table 3
See Table 4
0.29 (0.042)
0.40 (0.058)
0.50 (0.072)
0.65 (0.094)
no melting, no significant
shrinkage (max 5 %)
5 (34.5)
Pass
A
It is possible that the thermal transmission properties of felted glass fiber
thermal insulation will vary with temperature, temperature gradient, thickness and
shape. Note that the apparent thermal conductivity requirements specified in the
table are based on samples tested under conditions specified in 16.1.3. These are
comparative values for establishing specification compliance and it is possible that
they do not represent the installed performance of the insulation under use
conditions of the insulation differing substantially from the test conditions.
Insulation
Length,
ft (m)
0.3 (7.6)
0.5 (12.7)
0.75 (19.1)
1.0 (25.4)
150 (45.2)
75 (22.9)
45 (13.7)
45 (13.7)
0.3 (7.6)
0.5 (12.7)
0.75 (19.1)
1.0 (25.4)
3.5 (1.07)
6.0 (1.83)
12.25 (3.74)
15.0 (4.58)
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C 1086 09
C 1086 09
19.2 Package MarkingUnless otherwise specified, each
container shall be plainly marked with the manufacturers
name, the product name, and quantity of the material in the
container.
20. Keywords
20.1 binder free; glass fiber felt; glass fiber; needled felt
SUPPLEMENTARY REQUIREMENTS
The following supplementary requirements shall apply only when specified be purchaser in contract
or order when Specification C 1086 replaces Military Specification No. MIL-I-16411F for use by the
U.S. Department of Defense, Department of Navy and Navel Sea Systems Command.
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in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk
of infringement of such rights, are entirely their own responsibility.
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