ISO-7404-3 › Complete Document History
Methods for the petrographic analysis of coals - Part 3: Method of determining maceral group composition
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3RD EDITION - ANALYSIS OF COALS - Oct. 1, 2009
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Obsolete Revision Information: |
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2ND EDITION - PART 3: METHOD OF DETERMINING - Oct. 1, 1994
1ST EDITION - Part 3: Method of determining maceral group composition - Nov. 15, 1984 |