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ASTM D4708-19

ASTM D4708-19

Standard Practice for Preparation of Uniform Free Films of Organic Coatings

2019-08-22 /Active
Significance and Use:

4.1 Free films are required for conducting tests to evaluate physical and mechanical properties such as tensile and elongation (Test Methods D2370), moisture vapor permeability (Test Methods D1653 and E96/E96M), microbiological activity resistance (Test Method D5590), and other physical properties of organic coatings where the substrate may interfere with the determination.


1.1 This practice covers the preparation of free films of organic coatings for use in determining the physical properties of the coatings.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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.

1.4 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.

free coating; film; lacquer; organic coatings; paints and related coatings; substrates; surface preparation; vapors; varnishes;
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