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    ASTM D4749-87(2012)

    Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
    • 발행일 : 2012-09-01
    • 발행기관 : ASTM
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분야 05.06 : 기체화 연료; 석탄 및 코커스
적용범위

1.1 This test method covers procedures for determining the sieve analysis of coal and designating the size of coal from sieve analysis data. Raw as well as prepared (crushed, cleaned or screened) coals can be tested by this test method.

1.2 This test method explains how to designate coal sizes from the results of sieve analysis data in order to represent the condition of the coal as sold. In the case of special mixtures or coals with noncontinuous ranges of sizes, a sufficiently complete sieve analysis must be made to properly describe the size distribution.

1.3 This test method is not applicable for determining the sieve analysis nor for designating the size of pulverized coal. (See Note 1.) Size fractions down to and including 38 μm (No. 400 U.S.A. Standard Series) can be treated by the methods discussed in this test method. Methods for handling size fractions below 38 μm (No. 400) will be developed by this committee.

Note 1For powdered or pulverized coal as is fired into steam boilers, refer to Test Method D197.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.

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.

국제분류(ICS)코드 75.160.10 : 고체 연료
페이지수 10
Edition 87(2012)

이력정보

No. 표준번호 표준명 발행일 상태
1 ASTM D4749-87(2012)상세보기 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size 2012-09-01 구판
2 ASTM D4749-87(2007)상세보기 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size 2007-10-01 구판
3 ASTM D4749-87(1994)e1상세보기 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size 1994-01-01 구판
4 ASTM D4749-87(2002)e1상세보기 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size 1987-11-27 구판
5 ASTM D4749-87(2002)상세보기 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size 1987-11-27 구판
6 ASTM D4749-87상세보기 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size 1987-01-01 구판

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