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Significance and Use
The measured mean bulk density of a coal stockpile is used with a measurement of the stockpile volume per Test Method D6172. Procedures to determine the quantity of stockpiled coal. This measure of quantity is often used as a reference value for adjusting inventory records.
1.1 This test method covers procedures for determining the bulk density of coal using instrumentation that measures the relative backscatter of nuclear gamma radiation throughout the depth of the stockpile under test.
1.2 This procedure is applicable to all ranks of coal.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use. The equipment uses radioactive materials, which may be hazardous to the health of users, unless proper precautions are taken.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1586 Test Method for Penetration Test (SPT) and Split-Barrel Sampling of Soils
D6172 Test Method for Determining the Volume of Bulk Materials Using Contours or Cross Sections Created by Direct Operator Compilation Using Photogrammetric Procedures
NIST StandardNational Institute for Standards and Technology Ha Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
ASME StandardASME Pipe Codes Available from American Society of
ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity); 73.040 (Coals)
UNSPSC Code 15101601(Coal)
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ASTM D6347 / D6347M-05(2010), Standard Test Method for Determination of Bulk Density of Coal Using Nuclear Backscatter Depth Density Methods, ASTM International, West Conshohocken, PA, 2010, www.astm.orgBack to Top