ASTM D763未加工棕土和烧棕土颜料用标准规范
日期:2012-02-08 11:27
ASTM D763 Standard Specification for Raw and Burnt Umber Pigments
ASTM D763未加工棕土和烧棕土颜料用标准规范
This specification covers raw and burnt umber pigments. The pigments could be in a dry or paste in oil form. Dry pigments should conform to the composition requirements for iron oxide content, calcium compound content, moisture and other volatile matter content, coarse particle content, and organic color content. Raw umber dry pigments should be in a soft, dry form and made from a hydrat
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09/14 11:36