ASTM D6490-99(2022) PDF

Scope: 1.1 This test method covers the determination of the rate at which water vapor passes through non film forming treatments, such as silanes, siloxanes and blends of silanes/siloxanes applied to cementitious substrates. 1.2 This test method covers the use of the wet cup technique, which most closely approaches the exterior conditions for use for these materials. Other conditions can be used if agreed upon between purchaser and supplier. Agreement should not be expected between results obtained by different methods or test conditions. 1.3 The values stated in SI units of measurement are designated as the standard. Factors for conversion to inchpound units are given in 9.2.1.1 and 9.2.2.1. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D6490-99(2022) Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D1734 Standard Practice for Making Cementitious Panels for Testing Coatings
ASTM D3924 Standard Specification for Standard Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials
ASTM D823 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
ASTM E104 Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions

2022 ASTM D6490-99(2022) Standard Test Method for Water Vapor Transmission of NonFilm Forming Treatments Used on Cementitious Panels
1999 ASTM D6490-99(2014) Standard Test Method for Water Vapor Transmission of NonFilm Forming Treatments Used on Cementitious Panels
1999 ASTM D6490-99(2006) Standard Test Method for Water Vapor Transmission of NonFilm Forming Treatments Used on Cementitious Panels
1999 ASTM D6490-99 Standard Test Method for Water Vapor Transmission of NonFilm Forming Treatments Used on Cementitious Panels