1、Designation: C1136 16C1136 17Standard 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 U.S. Department of Defense.1. Scope1.1 This specification covers v
3、apor 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 ba
4、rrier 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 requirem
5、ents 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
6、 that 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
7、responsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished
8、in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC755 Practice for Selec
9、tion of Water Vapor Retarders 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 RetardersC133
10、8 Test Method for Determining Fungi Resistance of Insulation Materials and FacingsD828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation ApparatusD882 Test Method for Tensile Properties of Thin Plastic SheetingD1204 Test Method for Linear Dimensional Change
11、s of Nonrigid Thermoplastic Sheeting or Film at Elevated TemperatureD3285 Test Method for Water Absorptiveness of Nonbibulous Paper and Paperboard (Cobb Test) (Withdrawn 2010)3E84 Test Method for Surface Burning Characteristics of Building MaterialsE96/E96M Test Methods for Water Vapor Transmission
12、of Materials1 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 Nov. 1, 2016May 15, 2017. Published November 2016May 2017. Originally approved in
13、1990. Last previous edition approved in 20122016 asC1136 12.C1136 16. DOI: 10.1520/C1136-16.10.1520/C1136-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the stan
14、dards 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 what changes have been made to the previous versio
15、n. 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 the official document.Copyright ASTM International
16、, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.2 TAPPI Standards:T461 Flame Resistance of Treated Paper and Paperboard3. Terminology3.1 DefinitionsDefinitions in Terminology C168 apply to terms used in this specification.4. Classification4.1 Classification of
17、 vapor retarders, with the exception of Type IX, is based on physical properties.4.1.1 Type IX, in addition to physical property requirements, has specific structural requirements.4.2 Physical property requirements are listed in Table 1.5. Materials and Manufacture5.1 Vapor retarders, with the excep
18、tion of Type IX, are constructed of various films, metallic foils, fabrics, papers andreinforcements, alone or in combination as a lamination.5.2 Metallic foils, the most commonly used being aluminum of a minimum gauge, are the only materials expected to providethe impermeable component in a vapor r
19、etarder 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 metallic foil with a cumulative minimum thickness of 0.0012 in. (3
20、0.5)5.2.4 A fully laminated, continuous protective substrate on at least one side of the foil layers5.3 Types VII-X vapor retarders contain water resistant outer surfaces.6. Physical Properties6.1 Maximum permeance for a specific type vapor retarder shall be as shown in Table 1 when tested in accord
21、ance with 10.1.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 ten
22、sile strength 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
23、 fungi when 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 wi
24、th 10.7.6.8 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 allo
25、wable for the type being tested, when tested in accordance with 10.9.TABLE 1 Physical Property RequirementsAPhysical Properties Type I Type II Type III Type IV Type VII Type VIII Type IX Type XPermeance, 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
26、.00 (0.00) 0.02 (1.15)Burst Strength, minpsi (kPa)55 (380) 35 (240) 55 (380) 35 (240) 70 (483) 60 (414) 80 (552) 75 (518)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) 60 (10.5)Tensile, Cross Directionlb/in. width, min (N/mm
27、 width, min)30 (5.3) 20 (3.5) 30 (5.3) 20 (3.5) 10 (1.7) 7 (1.2) 25 (4.4) 50 (8.8)Dimensional Change, maxpercent0.50 0.50 0.50 0.50 1 1 0.5 0.5Surface Water Resistance,max. g water absorptionn/a n/a n/a n/a 0.02 0.02 0.02 0.02ATypes V and VI were deleted in 2010 because these materials are no longer
28、 produced and were replaced with Types VII and VIII.C1136 1726.10 Types Maximum water weight absorbed by Type VII-X vapor retarders shall not absorb more than 0.02be as shown inTable 1 g of water (2.0 g/m2) when tested for surface water resistance in accordance with 10.10.7. Dimensions, Mass, and Pe
29、rmissible 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 sheeted materials shall be 618 in. (63 mm) on length and width.8. Workmanship, Finish, an
30、d Appearance8.1 There shall be no defects in materials or 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 ma
31、terial.9. Significance and Use9.1 Entrapment of water in 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
32、 the potential to create a vapor driving force toward the 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 pr
33、ovide physical protection and added strengthto the insulation 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, c
34、an use this specificationto specify the appropriate type 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
35、Tensile Strength:10.3.1 Test the tensile strength of plastic 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
36、 D828, with results reported in poundsper inch of specimen 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 abov
37、especimen configuration, employ visual inspection and appropriate 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) fo
38、r 24 h.10.5 Fungi Resistance:10.5.1 Test fungi resistance 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
39、 materials, with the exception of a metallic foil side, which neednot be tested.10.5.4 Test either side of single layer products such as polymeric films.10.6 Thermal IntegrityTest in accordance with Test Method C1263.10.7 Burst StrengthTest in accordance with D774/D774M Test Method for Bursting Stre
40、ngth 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
41、 and Humidity ResistanceTest in accordance with Test Method C1258.10.10 Surface Water ResistanceTest the outer surface in accordance with Test Method D3285.C1136 17311. Sampling, Inspection, and Rejection of Defective Material11.1 A lot of material shall be considered to be the largest quantity of a
42、 specific vapor retarder received by the purchaser underone order, or, 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
43、 a lot of rolls or one bundle of sheets in a lot of sheeted material.11.3 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
44、test requirements.11.4 Incoming lots shall be sampled at a minimum 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 defec
45、tive, the lot shall be considered unacceptable.11.7 It shall 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 cont
46、ract, the purchaser shall be furnished certification that samples 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 Qualific
47、ation RequirementsThe following requirements are generally designated 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 ret
48、ardance permanence,12.2.9 Elevated temperature and humidity resistance, and12.2.10 Water resistance.12.3 Inspection RequirementsThe following requirements are generally designated for acceptance sampling of lots ofqualified products:12.3.1 Dimensions.12.3.2 Workmanship and appearance.13. Product Mar
49、king13.1 The packaged vapor retarder material shall bear identification including 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, material which has been classified as to surface burning characteristics in accordance with TestMethod E84 by an independent testing laboratory agreed upon by both parties
