1、Designation: C1136 10C1136 12Standard Specification forFlexible, Low Permeance Vapor Retarders for ThermalInsulation1This standard is issued under the fixed designation C1136; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the yea
2、r of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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. Scope1.1 This specification covers vapor
3、retarders for thermal insulation, specifically, flexible materials with permeance of 0.10 permor lower and surface burning characteristics of 25 flame spread/50 smoke or lower. These materials are intended for use at surfacetemperatures of 20 to 150F (29 to 66C). It does not cover mastics or barrier
4、 coatings applied in liquid form, nor materialsintended for use as weather barriers.1.2 This is a material specification and does not imply that an installed system using these materials will provide the physicalproperties specified in Section 6.1.3 This specification provides physical requirements
5、for vapor retarders. Practice C755 provides assistance in solving problemsrelated to moisture vapor transmission through thermal insulation materials.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that
6、 are provided for information only and are not considered standard.1.5 The following precautionary caveat pertains to the test methods portion only, Section 10, of this specification:This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the respo
7、nsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC755 Practice for Selection of Water Vapor Retar
8、ders for Thermal InsulationD774/D774M Test Method for Bursting Strength of Paper (Withdrawn 2010)3C1258 Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for InsulationC1263 Test Method for Thermal Integrity of Flexible Water Vapor RetardersC1338 Test Method for Determi
9、ning Fungi Resistance of Insulation Materials and FacingsD828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus (Withdrawn2009)3D882 Test Method for Tensile Properties of Thin Plastic SheetingD1204 Test Method for Linear Dimensional Changes of Non
10、rigid Thermoplastic Sheeting or Film at Elevated TemperatureE84 Test Method for Surface Burning Characteristics of Building MaterialsE96/E96M Test Methods for Water Vapor Transmission of Materials2.2 TAPPI Standards:T461 Flame Resistance of Treated Paper and Paperboard3. Terminology3.1 DefinitionsDe
11、finitions in Terminology C168 apply to terms used in this specification.1 This specification is under the jurisdiction ofASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.33 on Insulation Finishesand Moisture.Current edition approved May 1, 2010Sept. 1, 20
12、12. Published June 2010January 2013. Originally approved in 1990. Last previous edition approved in 20092010 asC113609.10.DOI:10.1520/C1136-10.10.1520/C1136-12.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of
13、ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of
14、 what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered
15、 the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Classification4.1 Classification of vapor retarders, with the exception of Type IX, is based on physical properties.4.1.1 Type IX, in addition to physical prope
16、rty requirements, has specific structural requirements.4.2 Classification of vapor retarders is based on vapor retardance and strength properties, as Physical property requirements arelisted in Table 1.5. Materials and Manufacture5.1 It is possible to construct vapor retarders from any numberVapor r
17、etarders, with the exception of Type IX, are constructedof various films, metallic foils, cloths, papers,fabrics, papers and reinforcements, alone or in combination, to achieve bination as a lamination.5.2 Metallic foils, the most commonly used being aluminum of a minimum gauge, are the only materia
18、ls expected to providethe impermeable component in a vapor retarder required for Type IX.5.2.1 Type IX vapor retarders must contain at a minimum the following components in the structure:5.2.2 One layer of metallic foil with a minimum thickness of 0.00095 in. (24.1) or5.2.3 Multiple layers of metall
19、ic foil with a cumulative minimum thickness of 0.0012 in. (30.5)5.2.4 A fully laminated, continuous protective substrate on at least one side of the foil layers6. Physical Properties6.1 Maximum permeance for a specific type vapor retarder shall be as shown in Table 1 when tested in accordance with 1
20、0.1.Values for permeance requirements are rounded to two decimals.6.2 All vapor retarders shall demonstrate a flame spread of 25 or less and smoke developed of 50 or less when testing the finishside (the side opposite that contacting the insulation) in accordance with 10.2.6.3 Minimum tensile streng
21、th for a specific type vapor retarder shall be as shown in Table 1 when tested in accordance with10.3.6.4 Maximum dimensional change for a specific type vapor retarder shall be as shown in Table 1, when tested in accordancewith 10.4.6.5 All type vapor retarders shall not sustain growth of fungi when
22、 tested in accordance with 10.5.6.6 All type vapor retarders shall not crack or delaminate at temperatures from 20 to 150F (29 to 66C) when tested inaccordance with 10.6.6.7 Minimum burst strength for a specific type vapor retarder shall be as shown in Table 1 when tested in accordance with 10.7.6.8
23、 Vapor retarders containing paper or paper products shall not demonstrate an increase in char length of more than 20 % whentested in accordance with 10.8.6.9 All type vapor retarders shall not corrode or delaminate, nor demonstrate, after exposure, a permeance greater than themaximum allowable for t
24、he type being tested, when tested in accordance with 10.9.7. Dimensions, Mass, and Permissible Variations7.1 Dimensions for roll or sheeted materials shall be as specified by the purchaser.7.2 Tolerance for roll materials shall be 618 in. (63 mm) on width and +5, 0 % on length.7.3 Tolerance for shee
25、ted materials shall be 618 in. (63 mm) on length and width.TABLE 1 Physical Property RequirementsAPhysical Properties Type I Type II Type III Type IV Type VII Type VIII Type IXPermeance, maxPerms (ngPa 1 s1 m2)0.02 (1.15) 0.02 (1.15) 0.10 (5.75) 0.10 (5.75) 0.01 (0.58) 0.02 (1.15) 0.00 (0.00)Burst S
26、trength, minpsi (kPa)55 (380) 35 (240) 55 (380) 35 (240) 70 (483) 60 (414) 80 (552)Tensile, Machine Directionlb/in. width, min (N/mm width, min)45 (7.9) 30 (5.3) 45 (7.9) 30 (5.3) 11 (1.9) 8 (1.4) 25 (4.4)Tensile, Cross Directionlb/in. width, min (N/mm width, min)30 (5.3) 20 (3.5) 30 (5.3) 20 (3.5)
27、10 (1.7) 7 (1.2) 25 (4.4)Dimensional Change, maxpercent0.50 0.50 0.50 0.50 1 1 0.5ATypes V and VI were deleted in 2010 because these materials are no longer produced and were replaced with Types VII and VIII.C1136 1228. Workmanship, Finish, and Appearance8.1 There shall be no defects in materials or
28、 workmanship that will affect the required performance of the vapor retarder.8.2 There shall be no defects that adversely affect the appearance of the vapor retarder.8.3 There shall be no defects that would affect ability of user to process material.9. Significance and Use9.1 Entrapment of water in
29、thermal insulation caused by condensation of water vapor that has penetrated into the insulation isdetrimental to the thermal resistance of the insulation. For this reason, in certain installations where temperature and moistureconditions have the potential to create a vapor driving force toward the
30、 insulation, a deterrent to the passage of such vapor intothe installed insulation needs to be provided. This is the primary function of the vapor retarder.9.2 In addition to the function stated in 9.1, a vapor retarder has the potential to provide physical protection and added strengthto the insula
31、tion system.9.3 This specification is used to specify material by physical property requirements that address the above prerequisites. Thedesigner of an insulation system, after determining the degree of protection needed for the insulation, can use this specificationto specify the appropriate type
32、of vapor retarder when one is required.10. Test Methods10.1 Water Vapor PermeanceTest water vapor permeance in accordance with Test Methods E96/E96M, Procedure A.10.2 Surface Burning CharacteristicsTest in accordance with Test Method E84.10.3 Tensile Strength:10.3.1 Test the tensile strength of plas
33、tic sheet vapor retarders in accordance with Test Method D882, with results reported inpounds per inch width of specimen (Newtons per millimetre width).10.3.2 Test the tensile strength of all other vapor retarders in accordance withTest Method D828, with results reported in poundsper inch of specime
34、n width (Newtons per millimetre width).10.3.3 Tested specimens shall be 2 in. (51 mm) wide with 1 in. (25 mm) between jaws.10.3.4 Since the criterion for jaw breaks of Test Method D828 (a break within 1 in. of jaw) cannot be used with the abovespecimen configuration, employ visual inspection and app
35、ropriate care to ensure that the clamping action is not initiating breakage.10.4 Dimensional Stability:10.4.1 Test dimensional stability in accordance with Test Method D1204.10.4.2 Expose the specimens to a temperature of 150 6 4F (66 6 2C) for 24 h.10.5 Fungi Resistance:10.5.1 Test fungi resistance
36、 in accordance with Test Method C1338.10.5.2 For all tests, inoculate three specimens of the subject sample. Growth on any of the three specimens constitutes failureof the sample.10.5.3 Test both sides of laminated products that use dissimilar materials, with the exception of a metallic foil side, w
37、hich neednot be tested.10.5.4 Test either side of single layer products such as polymeric films.10.6 Thermal Integrity of Flexible Water Vapor RetardersTest in accordance with Test Method C1263.10.7 Burst Strength of Vapor RetardersTest in accordance with D774/D774M Test Method for Bursting Strength
38、 of Paper.10.7.1 Since only one side of the vapor retarder material will be exposed in service, only that side need be evaluated for burststrength.10.8 Permanence of Flame RetardancyTest in accordance with TAPPI Test T461, Flame Resistance of Treated Paper andPaperboard.10.9 Elevated Temperature and
39、 Humidity Resistance of Vapor Retarders for InsulationTest in accordance with Test MethodC1258.11. Sampling, Inspection, and Rejection of Defective Material11.1 A lot of material shall be considered to be the largest quantity of a specific vapor retarder received by the purchaser underone order, or,
40、 it so designated by the manufacturer, that quantity of products identified as the particular lot.11.2 A unit of material shall be considered to be the smallest packaged quantity of vapor retarder within a lot, that is, one rollin a lot of rolls or one bundle of sheets in a lot of sheeted material.1
41、1.3 Inspection shall consist of any tests for specification conformance the user deems necessary. Due to the impracticality ofperforming some tests on an inspection basis, the user is entitled to request certification to specific test requirements.C1136 12311.4 Incoming lots shall be sampled at a mi
42、nimum rate of 5 % of units received for inspection.11.5 If any nonconformance to specification is detected within the 5 % sample, increase sampling to 10 % of the lot.11.6 If 50 % or more of the 10 % sampled units is determined to be defective, the lot shall be considered unacceptable.11.7 It shall
43、be left to the discretion of the user whether to continue sampling for acceptable material. In any case, units founddefective shall be considered unacceptable and rejected.12. Certification12.1 When specified in the purchaser order or contract, the purchaser shall be furnished certification that sam
44、ples representingeach lot have been either tested or inspected as directed in this specification and the requirements have been met. When specifiedin the purchaser order or contract, a report of the results shall be furnished.12.2 Qualification RequirementsThe following requirements are generally de
45、signated for initial product qualification:12.2.1 Permeance,12.2.2 Surface burning characteristics,12.2.3 Tensile strength,12.2.4 Dimensional stability,12.2.5 Fungi resistance,12.2.6 Thermal integrity,12.2.7 Burst Strength,12.2.8 Flame retardance permanence, and12.2.9 Elevated temperature and humidi
46、ty resistance.12.3 Inspection RequirementsThe following requirements are generally designated for acceptance sampling of lots ofqualified products:12.3.1 Dimensions, and12.3.2 Workmanship and appearance.13. Product Marking13.1 The packaged vapor retarder material shall bear identification including
47、the following information:13.1.1 Manufacturer,13.1.2 Product designation,13.1.3 Roll or sheet dimensions, and13.1.4 Lot number.13.2 If required by the user, the packaged material shall bear a marking of conformance to this specification, such as: ASTMC1136, Type _.13.3 If required by the user, mater
48、ial which has been classified as to surface burning characteristics in accordance with TestMethod E84 by an independent testing laboratory agreed upon by both parties, shall bear the authorized label or marking of thatinstitution.14. Packaging14.1 Unless otherwise specified, the material shall be su
49、pplied in the manufacturers standard commercial package.15. Keywords15.1 flexible; low permeance; thermal insulation; vapor retardersC1136 124APPENDIX(Nonmandatory Information)X1. PERMEANCE UNDER OTHER THAN STANDARD TEST CONDITIONSX1.1 Transmission of water vapor through a vapor retarder is induced by a vapor pressure differential between sides of the vaporretarder, caused by different conditions of relative humidity from side to side.X1.2 The resistance of materials to the passage of water may change under varying vapo
