OS GSO ISO 1691:2016
ISO 1691:1976
Omani Standard
Current Edition
·
Approved on
22 December 2016
Sodium and potassium silicates for industrial use -- Determination of carbonates content -- Gas-volumetric method
OS GSO ISO 1691:2016 Files
English
5 Pages
Current Edition
Reference Language
OMR
20.93
OS GSO ISO 1691:2016 Scope
This International Standard specifies a gas-volumetric method for the determination of the carbonates content, expressed, respectively, as sodium carbonate or potassium carbonate, of sodium and potassium silicates for industrial use.
Three cases, defined by a preliminary test, are envisaged :
1.1 Sodium or potassium silicates containing neither sulphides nor chlorates.
1.2 Sodium or potassium silicates containing sulphides.
1.3 Sodium or potassium silicates containing chlorates.
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