Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide ISO 1689:1976
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.
Life cycle
NOW
PUBLISHED ISO 1689:1976 90.93
Standard confirmed Oct 20, 2023