TAPPI T 612 : OM 89
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
ANALYSIS OF SODIUM CARBONATE (SODA ASH)
23-07-2013
12-01-2013
Describes the following procedures for the analysis of sodium carbonate (papermakers soda ash); a. Total alkalinity (as Na2O) b. Sodium bicarbonate c. Weight loss on heating at 250 deg C It will serve as the basis for sale and purchase of sodium carbonate in establishing quality.
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