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ISO 1689:1976

Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide

Feb 1, 1976

General information

90.93     Oct 20, 2023

ISO

ISO/TC 47

International Standard

71.060.50  

French   English  

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Published

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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.

Life cycle

NOW

PUBLISHED
ISO 1689:1976
90.93 Standard confirmed
Oct 20, 2023

National adoptions

SSH ISO 1689:1976  
DPS

Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide

60.60 Standard published

DPS/KT 47 more