95.99 Withdrawal of Standard Oct 10, 2013
ISO
ISO/TC 27/SC 5 Methods of analysis
International Standard
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.
WITHDRAWN
ISO 334:1975
WITHDRAWN
ISO 334:1992
95.99
Withdrawal of Standard
Oct 10, 2013
WITHDRAWN
ISO 334:2013