This International Standard specifies a titrimetric method for the determination of sodium carbonate in sodium bicarbonate for industrial use. This method is applicable to products with a sodium carbonate content greater than 0.02% (m/m).
NBN T 03-141-1979 history
1979NBN T 03-141-1979 Sodium hydrogen carbonate for industrial use - Determination of sodium carbonate - Titrimetric method