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>ISO 1689:1976-Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
sklademVydáno: 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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Označení normy:ISO 1689:1976
Počet stran:2
Vydání:1
Vydáno: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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