ISO 1952:1976
w
ISO 1952:1976
6679

Abstract 

The sample of brown coal or lignite is extracted with boiling 0,005 N hydrochloric acid and the extract centrifuged. The sodium and potassium in solution are determined by any precise analytical method (for example, gravimetric method or flame photometric method).


General information 

  •  :  Withdrawn
     : 1976-06
  •  : 1
     : 2
  •  : ISO/TC 27 Coal and coke
  •  :
    73.040 Coals

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.