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ASTM D388-19

Standard Classification of Coals by Rank
- 발행일 : 2019-06-01
- 발행기관 : ASTM
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상세정보

분야	05.06 : 기체화 연료; 석탄 및 코커스
적용범위	1.1 This standard covers the classification of coals by rank, that is, according to their degree of metamorphism, or progressive alteration, in the natural series from lignite to anthracite. 1.2 This classification is applicable to coals that are composed mainly of vitrinite. Note 1: Coals rich in inertinite or liptinite (exinite), or both, cannot be properly classified because, in those macerals, the properties that determine rank (calorific value, volatile matter, and agglomerating character) differ greatly from those of vitrinite in the same coal. Often such coals can be recognized by megascopic examination. In North America, these coals are mostly nonbanded varieties that contain only a small proportion of vitrain and consist mainly of attrital materials. The degree of metamorphism of nonbanded and other vitrinite-poor coals can be estimated by determining the classification properties of isolated or concentrated vitrinite fractions, or by determining the reflectance of the vitrinite (see Test Method D2798 and Appendix X1 of this classification). However, in the use of these vitrinite-poor coals, some properties normally associated with rank, such as rheology, combustibility, hardness, and grindability (as well as the rank determining properties) may differ substantially from those of vitrinite-rich coals of the same degree of metamorphism. 1.3 The accuracy of the classification of impure coal may be impaired by the effect of large amounts of mineral matter on the determination of volatile matter and calorific value, and on their calculation to the mineral-matter-free basis. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4.1 Exception—The values stated in British thermal units per pound (Btu/lb) are to be regarded as the standard. The SI equivalents of Btu/lb are provided for information only and are not considered standard. 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	8
Edition	19

이력정보

No.	표준번호	표준명	발행일	상태
1	ASTM D388-23상세보기	Standard Classification of Coals by Rank	2023-05-15	표준
2	ASTM D388-23 REDLINE상세보기	Standard Classification of Coals by Rank	2023-05-15	표준
3	ASTM D388-19a REDLINE상세보기	Standard Classification of Coals by Rank	2019-11-01	구판
4	ASTM D388-19a상세보기	Standard Classification of Coals by Rank	2019-11-01	구판
5	ASTM D388-19상세보기	Standard Classification of Coals by Rank	2019-06-01	구판
6	ASTM D388-18a REDLINE상세보기	Standard Classification of Coals by Rank	2018-11-01	구판
7	ASTM D388-18상세보기	Standard Classification of Coals by Rank	2018-02-01	구판
8	ASTM D388-17a상세보기	Standard Classification of Coals by Rank	2017-11-01	구판
9	ASTM D388-17상세보기	Standard Classification of Coals by Rank	2017-07-01	구판
10	ASTM D388-15상세보기	Standard Classification of Coals by Rank	2015-05-15	구판
11	ASTM D388-12상세보기	Standard Classification of Coals by Rank	2012-03-15	구판
12	ASTM D388-05상세보기	Standard Classification of Coals by Rank	2005-09-15	구판
13	ASTM D388-99(2004)e1상세보기	Standard Classification of Coals by Rank	2004-06-01	구판
14	ASTM D388-99상세보기	Standard Classification of Coals by Rank	1999-09-10	구판
15	ASTM D388-99e1상세보기	Standard Classification of Coals by Rank	1999-09-10	구판
16	ASTM D388-90상세보기	Standard Classification of Coals by Rank		구판
17	ASTM D388-91상세보기	Standard Classification of Coals by Rank		구판
18	ASTM D388-77상세보기	Standard Specification for Classification Of Coals By Rank		구판
19	ASTM D388-88상세보기	Standard Classification of Coals by Rank		구판
20	ASTM D388-91a상세보기	Standard Classification of Coals by Rank		구판
21	ASTM D388-92상세보기	Standard Classification of Coals by Rank		구판
22	ASTM D388-95상세보기	Standard Classification of Coals by Rank		구판
23	ASTM D388-98상세보기	Standard Classification of Coals by Rank		구판