Specific gravity is one factor used to determine the required mass of individual particles used as gabion-fill, riprap, armor stone, breakwater stone, or other types of rock products used for erosion control applications, and acceptibility of these materials for their intended use.
Note 18212;The agency performing this test method can be evaluated in accordance with Practice D 3740
1.1 This test method covers the determination of the specific gravity of rock or man-made materials for erosion control.
1.2 This is a field test method to measure apparent specific gravity. For laboratory determination of bulk specific gravity see Test Method D 6473
1.3 Units8212;The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are given for information only.
1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.
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