717423

ISO 3423:1975

Sulphuric acid and oleums for industrial use -- Determination of sulphur dioxide content -- Iodometric method

standard by International Organization for Standardization , 11/01/1975

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Full Description

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.

 

Product Details

Published:
11/01/1975
Number of Pages:
3
File Size:
1 file , 250 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus