Reference number
ISO 1686:1976
ISO 1686:1976
© ISO 2026
International Standard
ISO 1686:1976
Sodium and potassium silicates for industrial use — Samples and methods of test — General
Edition 1
1976-02
1976-02
ISO 1686:1976
6302
Publicado
(Edición 1, 1976)
Esta publicación se revisó y confirmó por última vez en 2023.
Por lo tanto, esta versión es la actual.
ISO 1686:1976
ISO 1686:1976
6302
CHF
44
Resumen
The method specified are applicable directly to soluted mateials or materials soluble in boiling water. In case of solid chemicals not readily soluble in boiling water, a special preliminary treatment is necessary. Precautions shall be taken in order to avoid absorption of moisture and carbon dioxide. All tests and analyses shall be carried out at a temperature of 20 °C. In order to avoid incorrect results use only reagents of analytical grade. Replaces ISO Recommendation R 1686-1970