ASTM D6991-05
Historical Standard: ASTM D6991-05 Standard Test Method for Measurements of Internal Stresses in Organic Coatings by Cantilever (Beam) Method
SUPERSEDED (see Active link, below)
ASTM D6991
1. Scope
1.1 This test method covers the procedure for measurements of internal stresses in organic coatings by using the cantilever (beam) method.
1.2 This method is appropriate for the coatings for which the modulus of elasticity of substrate (Es) is significantly greater than the modulus of elasticity of coating (Ec) and for which the thickness of substrate is significantly greater than thickness of coating (see and Note 0).
1.3 The stress values are limited by the adhesion values of coating to the substrate and by the tensile strength of the coating, or both.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 to determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D823 Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
D1186 Test Methods for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to a Ferrous Base
D1400 Test Method for Nondestructive Measurement of Dry Film Thickness of Nonconductive Coatings Applied to a Nonferrous Metal Base
Keywords
cantilever; deflection; internal stress; organic coatings;
ICS Code
ICS Number Code 25.220.60 (Organic coatings)
DOI: 10.1520/D6991-05
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