ISO 1689:1976
Sodium and potassium silicates for industrial use; Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide

Standard No.

ISO 1689:1976

Release Date

1976

Published By

International Organization for Standardization (ISO)

Latest

ISO 1689:1976

Scope

The document specifies the formula for the calculation. In this ratio, only sodium oxide and potassium oxide combined in the form of silicates is considered. Replaces ISO Recommendation R 1689-1970.

ISO 1689:1976 history

• 1976 ISO 1689:1976 Sodium and potassium silicates for industrial use; Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide