ISO 1689:1976

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

NORMA vydána dne 1.2.1976

Anglicky -
Elektronické PDF (1360.10 CZK)
Anglicky -
Tištěné (1360.10 CZK)

Francouzsky -
Elektronické PDF (1360.10 CZK)
Francouzsky -
Tištěné (1360.10 CZK)

The information about the standard:

Designation standards: ISO 1689:1976
Publication date standards: 1.2.1976
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Kategorie: Technické normy ISO

Annotation of standard text ISO 1689:1976 :

Description / Abstract: 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.