ISO 2997:1974
ISO 3137:1974
ISO 3139:1976
ISO 3360:1976
ISO 3699:1976
ISO 3706:1976
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ISO 3423:1975
Sulphuric acid and oleums for industrial use — Determination of sulphur dioxide content — Iodometric method
Automatically translated name:
Sulphuric acid and oleums for industrial use -- Determination of sulphur dioxide content -- Iodometric method
STANDARD published on 1.11.1975
The information about the standard:
Designation standards: ISO 3423:1975
Publication date standards: 1.11.1975
SKU: NS-431204
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 3423:1975 :
Description / Abstract: Applicable of products the SO2 content of which is equal to or more than 2 mg/kg. Based on the displacement of the sulphur dioxide present in the test portion by a current of pure nitrogen and absorption in a known volume of iodine solution. Titration of the excess of iodine with standard volumetric sodium thiosulphate solution. The diagram of the glass apparatus for absorption is shown in a figure.
Similar standards:
1.11.1974
1.12.1974
1.4.1976
1.8.1976
1.8.1976
1.11.1976
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