ISO 3423:1975
Current
Sulphuric acid and oleums for industrial use — Determination of sulphur dioxide content — Iodometric method
Hardcopy , PDF
English, French
11-01-1975
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.
| Committee |
ISO/TC 47
|
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| BS 3903:1977 | Similar to |
| NFT 20 293 : 1970 | Similar to |
| NBN T 03 025 : 1979 | Identical |
| UNE 55590:1981 | Identical |
| UNE 55590:1981 | Not Equivalent |
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