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Homepage>ISO Standards>ISO 1689:1976-Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
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download between 0-24 hoursReleased: 1976
ISO 1689:1976-Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide

ISO 1689:1976

ISO 1689:1976-Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide

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Standard´s number:ISO 1689:1976
Pages:2
Edition:1
Released:1976
DESCRIPTION

ISO 1689:1976


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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