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Standard Specification for Zinc Oxide PigmentsTranslate name
STANDARD published on 1.6.2020
Designation standards: ASTM D79-86(2020)
Publication date standards: 1.6.2020
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: American technical standard
Category: Technical standards ASTM
This specification establishes the properties and requirements for the pigment commercially known as "zinc white" or zinc oxide, which may be purchased either in the dry or paste in oil forms. Dry pigments, which may be processed either by the French process or American process, shall conform individually to required compositions of zinc oxide, total sulfur, moisture and other volatile matter, total impurities (including moisture and other volatile matter), and coarse particles (total residue retained on a No. 325 sieve). Conversely, pigments in the paste in oil form shall adhere to required composition of the pigment, linseed oil, moisture and other volatile matter, and coarse particles and skins (total residue retained on a No. 325 sieve). Pigments shall also be tested for tinting strength, and oil absorption by Gardner-Coleman and spatula rub-out methods.
American process, French process, mildew protection, ultraviolet absorption, zinc oxide, zinc white,, ICS Number Code 87.060.10 (Pigments and extenders)
|Significance and Use|
3.1 Zinc oxide functions as both a chemical and a pigment. It is used in a variety of applications including rubber, paint, reprography, glass, chemicals, etc. In paint, it contributes to mildew protection, ultraviolet absorption, hiding power, and neutralization of acids formed upon oxidation of the paint film.
1.1 This specification covers the pigments commercially known as “zinc white” or zinc oxide. The pigments may be purchased in the dry form or as a paste in oil.
Note 1: Zinc oxides are used in many industries. For additional information, see Classification and Test Methods for descriptions of zinc oxide use in rubber compounding.
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 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|
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