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SRPS ISO 3423:2015

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

Apr 29, 2015

General information

90.93     Feb 14, 2025

90.20    Jan 15, 2030

ISS

H047

International Standard

71.060.30  

English  

Plan za 2013. godinu.

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
SRPS H.B8.640:1981

NOW

PUBLISHED
SRPS ISO 3423:2015
90.93 Standard confirmed
Feb 14, 2025

Related project

Adopted from ISO 3423:1975