ASTM D 3724 : 2001(R2019)
Current
The latest, up-to-date edition.
Standard Specification for Synthetic Brown Iron Oxide Pigment
Hardcopy , PDF
English
01-10-2019
1.1This specification covers the pigments commercially known as synthetic pure brown iron oxides and blends. These pigments are suitable for use in paints and coatings. Methods of manufacture are:
1.1.1Precipitation of iron salts.
1.1.2Calcination of precipitated iron oxides.
1.1.3Blends of synthetic red, yellow, and black iron oxides.
1.1.4Blends of synthetic red, yellow, and black iron oxides plus the addition of carbon black to a maximum of 5.0 %. Small amounts of carbon black are added to obtain tinting colors not obtainable when synthetic brown iron oxide or carbon black are used singly.
1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3This 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.
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