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  • ASTM
    D4371-06(2012) Standard Test Method for Determining the Washability Characteristics of Coal
    Edition: 2012
    $144.00
    Unlimited Users per year

Description of ASTM-D4371 2012

ASTM D4371-06-Reapproved2012

Historical Standard: Standard Test Method for Determining the Washability Characteristics of Coal




ASTM D4371

Scope

1.1 This test method describes procedures for determining the washability characteristics of coarse-coal fractions and fine-coal fractions. Each sample being tested can have more than one coarse-coal size fraction and more than one fine-coal size fraction (see Annex A1). Each such size fraction has an upper size limit and a lower size limit, neither of which overlaps with the next larger nor smaller size fraction. (See Test Method D4749.)

1.2 While, in general, this test method has useful application in determining the washability characteristics of low-rank coals, in the strictest sense, it is not necessarily the most technically correct test method to determine washability characteristics of low-rank coals because of problems relative to the loss of moisture through drying during sample preparation and analysis. Methods that are directly applicable to low-rank coals are to be developed.

1.3 The values stated in SI units are to be regarded as the standard. The values shown in parentheses are for information only.

1.4 This standard does not purport to address 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. For specific hazard statements, see Section 8 and Appendix X1.


Keywords

float/sink of coal; relative density; specific gravity; unit density; washability of coal


ICS Code

ICS Number Code 75.160.10 (Solid fuels)


DOI: 10.1520/D4371-06R12



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