ISO-157 › Historical Revision Information
Coal -- Determination of forms of sulfur
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Specifies methods of determining the sulfate and pyrite sulfur contents of coals, including brown coals and methods of calculating the amount of organic sulfur present. Replaces the first edition.
To find similar documents by classification:
73.040 (Coals Including lignites Coal products, see 75.160.10)
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Document Number
ISO 157:1975
Revision Level
1ST EDITION
Status
Superseded
Publication Date
Jan. 15, 1975
Committee Number
ISO TC 27/SC 5/WG 2