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Significance and Use
4.1 Paints often become soiled, especially near doorways, windows, and in work and play areas. These test methods cover the determination of the relative resistance of different paints to erosion when repeatedly scrubbed during the life of the paint.
4.2 Test Method is a similar scrub resistance test using a weight-loss technique and reporting volumetric film erosion rates.
4.3 Test Method A measures scrub resistance by the traditional cycles-to-failure concept. Poor correlation in scrub testing can be attributable to among other things variations in the stiffness of the brush bristles, condition of washability tester, application and drying conditions. In an attempt to improve reproducibility, Test Method B has been developed.
1.1 These test methods cover a procedure for determining the resistance of wall paints to erosion caused by scrubbing, referred to herein after as “scrub resistance.”
1.2 Two test methods are covered as follows:
1.2.1 Test Method A—Cycles-to-failure obtained on test paint.
1.2.2 Test Method B—Ratio expressed as a percentage of cycles-to-failure obtained on the test paint to that obtained on a concurrent run with a known reference paint.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information 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.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D3924 Specification for Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials
D4213 Test Method for Scrub Resistance of Paints by Abrasion Weight Loss
ICS Number Code 87.040 (Paints and varnishes)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D2486-17, Standard Test Methods for Scrub Resistance of Wall Paints, ASTM International, West Conshohocken, PA, 2017, www.astm.orgBack to Top