ISO 2993:1974
ISO 3199:1975
ISO 3332:1975
ISO 3357:1975
ISO 3360:1976
ISO 3391:1976
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ISO 1691:1976
Sodium and potassium silicates for industrial use — Determination of carbonates content — Gas-volumetric method
Automatically translated name:
Sodium and potassium silicates for industrial use -- Determination of carbonates content -- Gas-volumetric method
STANDARD published on 1.7.1976
The information about the standard:
Designation standards: ISO 1691:1976
Publication date standards: 1.7.1976
SKU: NS-427351
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 1691:1976 :
Description / Abstract: Three cases, defined by a preliminary test, are envisaged: silicates containing neither sulphides nor chlorates; silicates containing sulphides; silicates containing chlorates. The method based on boiling of an acidified test portion containing methyl orange and with a lead paper strip in the vapour. The presence of sulphides produces blackening of the paper and the presence of chlorates decolorizes the methyl orange. Volumetric*measurement of carbon dioxide evolved from silicates containing neither sulphides nor chlorates by reaction with a hydrochloric acid solution. The principle for the oxidation of sulphides and the reduction of chlorates are specified.
Similar standards:
1.4.1974
1.2.1975
1.7.1975
1.9.1975
1.8.1976
1.9.1976
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