ASTM D 1653 Standard Test Methods for Water Vapor Transmission of Organic Coating Films

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ASTM D 1653 Document Information:

Title
Standard Test Methods for Water Vapor Transmission of Organic Coating Films

ASTM International

Publication Date:
Jul 10, 2003

Scope:

These test methods cover the determination of the rate at which water vapor passes through films of paint, varnish, lacquer, and other organic coatings. The films may be free films or they may be applied to porous substrates.

Two test methods are covered as follows:

Test Method A - Dry Cup Method, and

Test Method B - Wet Cup Method.

Agreement should not be expected between results obtained by different methods or test conditions. The method that most closely approaches the conditions of use should be selected.

The values stated in inch-pound units are to be designated as the standard. Factors for conversion are stated in 13.2.1.2 and 13.2.2.2.

This standard does not purport to address 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.

Keywords:

permeance
perms
water vapor permeance
water vapor transmission

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