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

  • Status :  Withdrawn
    Publication date : 1992-12
  • Edition : 2
    Number of pages : 5
  • :
    ISO/TC 27/SC 5
    Methods of analysis
  • 73.040
    Coals
    75.160.10
    Solid fuels

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information