Reference number
ISO 1688:1976
ISO 1688:1976
© ISO 2024
ISO 1688:1976
Sodium and potassium silicates for industrial use — Determination of dry matter — Gravimetric method
Edition 1
1976-02
1976-02
Retirada
Resumen
The principle consists in drying of a test portion in a platinum or silica dish followed by heating to between 600 °C and 650 °C. Weighing of the residue. The maximum deviation between results obtained is 0,6 % (m/m) in absolute value. Replaces ISO Recommendation R 1688-1970.