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ASTM D4749/D4749M-87(2019)e1
Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size- 발행일 : 2019-11-01
- 발행기관 : ASTM
상세정보
| 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 1: For powdered or pulverized coal as is fired into steam boilers, refer to Test Method D197. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 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. |
| 국제분류(ICS)코드 | 75.160.10 : 고체 연료 |
| 페이지수 | 10 |
| Edition | 87(2019)e1 |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM D4749/D4749M-87(2019)e1상세보기 | Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size | 2019-11-01 | 표준 |
관련상품
- 관련상품이 존재하지 않습니다.
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