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About This Item

 

Full Description

This Standard sets out a method for determining the Hardgrove grindability index of hard coal. This method may also be used to determine comparative values of related materials, e.g. shale bands and dirt bands.
 

Document History

  1. AS 1038.20-2002


    Coal and coke - Analysis and testing, Part 20: Higher rank coal - Hardgrove grindability index

    • Most Recent
  2. AS 1038.20-1992


    Coal and coke - Analysis and testing, Part 20: Higher rank coal - Hardgrove grindability index

    • Historical Version
  3. AS 1038.20-1981


    Methods for the analysis and testing of coal and coke, Part 20: Hardgrove grindability index of hard coal

    • Historical Version
  4. AS K164-1967

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    Method for determining the Hardgrove grindability index of hard coal

    • Historical Version
 

Amendments, rulings, supplements, and errata

  1. AS K164-1967 AMDT 1


    Amendment 1 to AS K164-1967 Method for determining the Hardgrove grindability index of hard coal