ISO 7404-5:2009
Current
The latest, up-to-date edition.
Methods for the petrographic analysis of coals — Part 5: Method of determining microscopically the reflectance of vitrinite
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English
24-09-2009
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ISO 7404-5:2009 specifies the methods for determining the reflectance of vitrinite of coals microcopically on the polished surfaces, immersed in oil. The methods are applicable to coals from single seams or coal blends covering the whole range of low-, medium- and high-rank coal.
Vitrinite reflectance measurements can be used to characterize the components within blends. Measures can be taken to correct for the vitrinite percentage within each of the components of the blend or to determine the proportion of components in a blend, particularly when the components have dissimilar vitrinite contents. This method necessitates the identification of vitrinite by the analyst.
Reflectance measurements on vitrinite obtained by interpreting the results from an automated system, are outside the scope of ISO 7404-5:2009.
| Committee |
ISO/TC 27/SC 5
|
| DevelopmentNote |
Supersedes ISO/DIS 7404-5. (09/2009)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS ISO 7404-5:2009 | Identical |
| NEN ISO 7404-5 : 2009 | Identical |
| PN ISO 7404-5 : 2002 | Identical |
| 16/30333252 DC : 0 | BS ISO 7404-4 - METHODS FOR THE PETROGRAPHIC ANALYSIS OF COALS - PART 4: METHOD OF DETERMINING MICROLITHOTYPE, CARBOMINERITE AND MINERITE COMPOSITION |
| ISO 11760:2005 | Classification of coals |
| BIS IS 770 : 2013 | CLASSIFICATION AND CODIFICATION OF INDIAN COALS, LIGNITES AND SEMI-ANTHRACITES |
| BS ISO 7404-3:2009 | Methods for the petrographic analysis of coals Method of determining maceral group composition |
| 07/30145808 DC : DRAFT AUG 2007 | BS ISO 7404-3 - METHODS FOR THE PETROGRAPHIC ANALYSIS OF COALS - PART 3: METHOD OF DETERMINING MACERAL GROUP COMPOSITION |
| BS ISO 7404-4:2017 | Methods for the petrographic analysis of coals Method of determining microlithotype, carbominerite and minerite composition |
| 03/314558 DC : DRAFT OCT 2003 | BS ISO 11760 - COAL - CLASSIFICATION FOR UTILIZATION PURPOSES |
| BS ISO 11760:2005 | Classification of coals |
| ISO 7404-3:2009 | Methods for the petrographic analysis of coals — Part 3: Method of determining maceral group composition |
| ISO 7404-2:2009 | Methods for the petrographic analysis of coals — Part 2: Methods of preparing coal samples |
| ISO 7404-1:2016 | Methods for the petrographic analysis of coals — Part 1: Vocabulary |
| ISO 11760:2005 | Classification of coals |
| ISO 7404-3:2009 | Methods for the petrographic analysis of coals — Part 3: Method of determining maceral group composition |
| AS 2856.3-2000 | Coal petrography Methods for microscopical determination of the reflectance of coal macerals (Reconfirmed 2013) (Reconfirmed 2023) |
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