1.1 This specification covers ferrous earthy pigment included under the general term "ochre." The pigment may be purchased in the dry form.
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.
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ASTM D5891-02(2009)
Standard Test Method for Fluid Loss of Clay Component of Geosynthetic Clay Liners
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