The method is applicable to sodium carbonate products having a sodium hydrogen carbonate contained in a test portion into sodium carbonate by addition of a known excess of sodium hydroxide, precipitation of all the carbonate by means of barium chloride an determination of the excess of sodium hydroxide by means of a standard volumetric hydrochloric acid solution.
WITHDRAWN
ISO 741:1976
95.99
Withdrawal of Standard
May 27, 2002
ABANDON
ISO/CD 741