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Significance and Use
3.1 Chemical cleaning and etching is used to prepare concrete for coating.
3.2 Residual chemicals not removed by water rinsing may adversely affect the performance and adhesion of coatings applied over prepared concrete surfaces. It is the intent of this test method to determine that residual chemicals have been removed by measuring the acidity or alkalinity of the final rinsed surface.
1.1 This test method covers procedures for determining the acidity or alkalinity of concrete surfaces prepared by chemical cleaning or etching prior to coating.
1.2 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.
1.3 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.
ICS Number Code 91.080.40 (Concrete structures)
UNSPSC Code 30111500(Concrete and mortars); 73181020(Surface treatment Services)
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ASTM D4262-05(2018), Standard Test Method for pH of Chemically Cleaned or Etched Concrete Surfaces, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top