Abstract 

Specifies a method of determining the nitrogen content of hard coal, brown coal and lignite by the semi-micro Kjeldahl method. Replaces the third edition.


General information

  • Status :  Withdrawn
    Publication date : 1996-03
  • Edition : 4
    Number of pages : 7
  • Technical Committee
    :
    ISO/TC 27/SC 5
    Methods of analysis
  • ICS :
    73.040
    Coals

Life cycle


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.

  2. Store
  3. Standards catalogue
  4. ICS
  5. 73
  6. 73.040
  7. ISO 333:1996