ISO-1689 › Sodium and potassium silicates for industrial use -- Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide

ISO-1689 - 1ST EDITION - CURRENT


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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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Document Number

ISO 1689:1976

Revision Level

1ST EDITION

Status

Current

Publication Date

Feb. 1, 1976

Committee Number

ISO TC 47