This International Standard specifies a gasometric method for the determination of carbonates in potassium hydroxide for industrial use. The method is applicable to products whose carbonate content, expressed as C02, is greater than 0.01% {m/m). Three cases, defined by a preliminary test, are planned: 1.1 Potassium hydroxide not containing sulfide or chlorate. 1.2 Potassium hydroxide containing sulphides. 1.3 Potassium hydroxide containing chlorates.
NBN T 03-187-1980 history
1980NBN T 03-187-1980 Potassium hydroxide for industrial use - Determination of carbonates content - Gas-volumetric method