ISO 334:1992
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ISO 334:1992
4280

Abstract 

The reference method specified is based on igniting a test portion (of hard coal, brown coal, lignite, or coke) in intimate contact with Eschka mixture in an oxidizing atmosphere, removal of combustible matter and conversion of the sulfur to sulfate, extraction of sulfate with hydrochloric acid solution and gravimetric determination by precipitation with barium chloride.


General information 

  •  :  Withdrawn
     : 1992-12
  •  : 2
     : 5
  •  : ISO/TC 27/SC 5 Methods of analysis
  •  :
    73.040 Coals
    75.160.10 Solid fuels

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