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ASTM D1648-86(2020)

Current Reaffirmation

Standard Specification for Basic Lead Silicochromate Pigment

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1.1 This specification covers two types of pigment commercially known as basic lead silicochromate.

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.


This specification covers two types of pigment commercially known as basic lead silicochromate. Both types of pigment shall consist of silica coated with lead licates and lead chromates with mass color and character, and oil absorption equal to that of a reference sample as agreed upon by the purchaser and seller. Specimens shall be sampled, prepared, and undergo chemical analysis to test their conformance with specified compositions of lead oxide, chromium trioxide, silica, and moisture and other volatile matter. Materials shall also be tested for ignition loss, specific surface diameter, and particle loss by microscopic methods.


SDO ASTM: ASTM International
Document Number D1648
Publication Date June 1, 2020
Language en - English
Page Count 2
Revision Level 86(2020)
Supercedes
Committee D01.31
Publish Date Document Id Type View
June 1, 2020 D1648-86R20 Reaffirmation
Dec. 1, 2014 D1648-86R14 Reaffirmation
July 1, 2008 D1648-86R08 Reaffirmation
Dec. 1, 2003 D1648-86R03 Reaffirmation
May 10, 1999 D1648-86R99 Reaffirmation