
Methods For The Petrographic Analysis Of Coals - Part 4: Method Of Determining Microlithotype, Carbominerite And Minerite Composition
出版:British Standards Institution

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2017 [30/09/2017]
Supersedes 16/30333252 DC & BS 6127-4(1990). (10/2017)
ISO 7404-4 : 2017-08 - Identical
ISO 7404-4 : 2017 - Identical
ISO 7404-4 : 2017-08 - Identical