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Last Updated: May 22, 2019
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ASTM D3722-05(2019)
Standard Specification for Natural Red and Brown Iron Oxide Pigments
Standard Specification for Natural Red and Brown Iron Oxide Pigments
D3722-05R19
ASTM|D3722-05R19|en-US
Standard Specification for Natural Red and Brown Iron Oxide Pigments
Standard
D3722 Standard Specification for Natural Red and Brown Iron Oxide Pigments>
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BOS Vol. 06.03 Committee D01
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Abstract
This specification covers red and brown pigments of dry and wet ground natural iron oxide, dry and wet ground calcined natural iron oxide, and mixtures of these with synthetic iron oxides. These pigments are suitable for such applications as paints and coatings. Specimens shall be sampled and suitably undergo chemical analysis for total iron oxide, sulfur as sulfates, organic coloring matter, matter soluble in water, coarse particles in dry pigment, and moisture and other volatile matter. The pigments shall also conform to specified mass color, tint character, and tinting strength as mutually agreed upon between purchaser and seller.
Scope
1.1 This specification covers dry and wet ground naturally occurring iron oxide, dry and wet ground calcined naturally occurring iron oxide, and mixtures of these with synthetic iron oxides. These pigments are suitable for use in paints, coatings, and many other applications.
1.2 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.