ASTM C1136-02
(Specification)Standard Specification for Flexible, Low Permeance Vapor Retarders for Thermal Insulation
Standard Specification for Flexible, Low Permeance Vapor Retarders for Thermal Insulation
SCOPE
1.1 This specification covers vapor retarders for thermal insulation, specifically, flexible materials with permeance of 0.10 perm or lower and surface burning characteristics of 25 flame spread/50 smoke or lower. These materials are intended for use at temperatures of -20 to 150°F (-29 to 66°C). It does not cover mastics or barrier coatings applied in liquid form, nor materials intended for use as weather barriers.
1.2 This specification provides physical requirements for vapor retarders. Practice C755 should provide assistance in solving problems related to moisture vapor transmission through thermal insulation materials.
1.3 The values stated in inch-pound units are to be regarded as standard. The SI units given in parentheses are for information only.
1.4 The following precautionary caveat pertains to the test methods portion only, Section 10, of this specification: 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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1136 – 02
Standard Specification for
Flexible, Low Permeance Vapor Retarders for Thermal
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Insulation
This standard is issued under the fixed designation C 1136; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope Paperboard Using Constant-Rate-of-Elongation Appara-
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tus
1.1 This specification covers vapor retarders for thermal
D 882 Test Methods for Tensile Properties of Thin Plastic
insulation, specifically, flexible materials with permeance of
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Sheeting
0.10 perm or lower and surface burning characteristics of 25
D 1204 Test Method for Linear Dimensional Changes of
flame spread/50 smoke or lower. These materials are intended
Nonrigid Thermoplastic Sheeting or Film at Elevated
for use at surface temperatures of −20 to 150°F (−29 to 66°C).
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Temperature
It does not cover mastics or barrier coatings applied in liquid
E 84 Test Method for Surface Burning Characteristics of
form, nor materials intended for use as weather barriers.
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Building Materials
1.2 This specification provides physical requirements for
E 96 Test Methods for Water Vapor Transmission of Mate-
vapor retarders. Practice C 755 should provide assistance in
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rials
solving problems related to moisture vapor transmission
2.2 TAPPI Standards:
through thermal insulation materials.
T461 Flame Resistance of Treated Paper and Paperboard
1.3 The values stated in inch-pound units are to be regarded
T803 Puncture Test of Containerboard
as standard. The SI units given in parentheses are for informa-
tion only.
3. Terminology
1.4 The following precautionary caveat pertains to the test
3.1 Definitions—Definitions in Terminology C 168 apply to
methods portion only, Section 10, of this specification: This
terms used in this specification.
standard does not purport to address all of the safety concerns,
if any, associated with its use. It is the responsibility of the user
4. Classification
of this standard to establish appropriate safety and health
4.1 Classification of vapor retarders is based on vapor
practices and determine the applicability of regulatory limita-
retardance and strength properties, as listed in Table 1.
tions prior to use.
5. Materials and Manufacture
2. Referenced Documents
5.1 Vapor retarders may be constructed of any number of
2.1 ASTM Standards:
2 various films, foils, cloths, papers, and reinforcements, alone or
C 168 Terminology Relating to Thermal Insulation
in combination, to achieve required performance.
C 755 Practice for Selection of Vapor Retarders for Thermal
2
Insulation
6. Physical Properties
C 1258 Test Method for Elevated Temperature and Humid-
6.1 Maximum permeance for a specific type vapor retarder
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ity Resistance of Vapor Retarders for Insulation
shall be as shown in Table 1 when tested in accordance with
C 1263 Test Method for Thermal Integrity of Flexible Water
10.1.
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Vapor Retarders
6.2 All vapor retarders shall demonstrate a flame spread of
C 1338 Test Method for Determining Fungi Resistance of
25 or less and smoke developed of 50 or less when testing the
2
Insulation Materials and Facings
finish side (the side opposite that contacting the insulation) in
D 828 Test Method for Tensile Properties of Paper and
accordance with 10.2.
6.3 Minimum tensile strength for a specific type vapor
1
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.33 on
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Insulation Finishes and Moisture. Annual Book of ASTM Standards, Vol 15.09.
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Current edition approved October 10, 2002. Published October 2002. Originally Annual Book of ASTM Standards, Vol 08.01.
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published as C 1136 – 90. Last previous edition C 1136 – 00. Annual Book of ASTM Standards, Vol 08.03.
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Annual Book of ASTM Standards, Vol 04.06. Annual Book of ASTM Standards, Vol 04.07.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C1136–02
TABLE 1 Physical Property Requirements
Type
Physical Properties
I II III IV V VI
Permeance, max, Perms 0.02 (1.15) 0.02 (1.15) 0.10 (5.75) 0.10 (5.75) 0.20 (1.15) 0.03 (1.72)
−1 −1 −2
(Ng·Pa s m )
Puncture Resistance, 50 (58) 25 (29) 50 (58) 25 (29) 175 (87) 25 (29)
min, Beach units (metric
units)
Machine Direction 45 (7.9) 30 (5.3) 45 (7.9) 30 (5.3) 40 (7
...
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