ISO 1689:1976
International Standard
Current Edition
·
Approved on
01 February 1976
Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
ISO 1689:1976 Files
English
2 Pages
Current Edition
20.8 OMR
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.
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