Reference number
ISO 5074:2015
© ISO 2025
International Standard
ISO 5074:2015
Hard coal — Determination of Hardgrove grindability index
Edition 3
2015-10
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Published (Edition 3, 2015)
This publication was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 5074:2015

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Format
CHF 43
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Abstract

ISO 5074:2015 specifies the method for determining the grindability index of hard coal using the Hardgrove machine. It also specifies the procedure for calibrating the test machine and for preparing the standard reference coal samples.

NOTE In this International Standard, the term "hard coal" is used as an indication of maturity or rank in the coalification sequence and is not related to the physical properties of the coal.

General information

  • Status
     : Published
    Publication date
     : 2015-10
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 3
    Number of pages
     : 1
  • Technical Committee :
    ISO/TC 27/SC 5
    ICS :
    73.040 
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