ISO 1689:1976

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

STANDARD published on 1.2.1976

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French -
electronic design (pdf) (58.50 USD)
French -
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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
Category: Technical standards 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.