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1.1 This standard covers two test methods (Method A for granular material, Method B for powdered material) that can be used as an index test for the evaluation of the oil sorption capacity of a representative sample of organophilic clay. The test method is not intended to be a performance test and the oil specified in the test methods may yield different results than other non-aqueous phase liquids (for example, coal tar, creosote, crude oil) encountered in the field. Method A should only be used on granular organophilic clay; otherwise finer particles may pass through the test sieve.

1.2 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

1.3 Units—The values stated in SI units are to be regarded as the primary units for the standard. For information only, non-SI units of measurement are also included in this standard to describe some equipment (bucket, sieve).

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 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.

5.1 This standard test method is intended as an index test to determine the relative oil sorption capacity of an organophilic clay. Organophilic clay is used for remediation of contaminated sediment, soil, and groundwater. Results of this standard test method can be used for a) evaluating whether product meets a manufacturing quality control specification, and b) evaluating acceptance of a product per a construction quality assurance material specification. The organophilic clay specified may be either granular or powder. There are two test methods; a gravity test method for granular specimens and a centrifuge test method for powdered specimens.