ISO-1689 › Sodium and potassium silicates for industrial use -- Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
ISO-1689
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1ST EDITION
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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