ASTM International - ASTM C1258-94(2000)

Standard Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation

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Organization: ASTM International
Publication Date: 1 January 2000
Status: historical
Page Count: 2
ICS Code (Binders. Sealing materials): 91.100.50
significance And Use:

On sub-ambient temperature systems, humid ambient conditions cause a vapor driving force toward the insulation which, if not retarded, is detrimental to the insulation'thermal resistance.... View More

scope:

1.1 This test method covers the determination of the aging resistance of flexible low permeance vapor retarders for thermal insulation as classified in Specification C1136. Water vapor permeance measurement and visual inspection after exposure at elevated temperature and humidity are used to assess vapor retarder response.

1.2 Typical vapor retarders applicable to this test method that are intended for indoor use include foil-scrim-kraft laminates, metallized polyester-scrim-kraft laminates, treated fabrics, treated papers, films, foils, or combinations of these materials that may comprise a vapor retarder material. This test method is not intended for assessment of the liquid-applied coatings, sealants, or mastics commonly used with insulation products.

1.3 The values stated in inch-pound units are to be regarded as standard. The SI units given in parentheses are for information purposes only.

1.4 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.

Document History

April 15, 2019
Standard Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation
1.1 This test method covers the determination of the resistance of flexible low permeance vapor retarders for thermal insulation as classified in Specification C1136 to elevated temperature and...
September 1, 2013
Standard Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation
1.1 This test method covers the determination of the aging resistance of flexible low permeance vapor retarders for thermal insulation as classified in Specification C1136. Water vapor permeance...
August 1, 2008
Standard Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation
1.1 This test method covers the determination of the aging resistance of flexible low permeance vapor retarders for thermal insulation as classified in Specification C 1136 . Water vapor permeance...
January 1, 2000
Standard Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation
1.1 This test method covers the determination of the aging resistance of flexible low permeance vapor retarders for thermal insulation as classified in Specification C1136. Water vapor permeance...
ASTM C1258-94(2000)
January 1, 2000
Standard Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation
1.1 This test method covers the determination of the aging resistance of flexible low permeance vapor retarders for thermal insulation as classified in Specification C1136. Water vapor permeance...
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