ISO 5522:1981

Published (Edition 1, 1981)

This publication was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 5522:1981

CHF 63

Convert Swiss francs (CHF) to your currency

Abstract

The method consists in acidifying and heating a test portion, entraining, in a current of nitrogen, the gas liberated, absorbing and oxidizing the gas by bubbling it through a neutral, dilute hydrogen peroxide solution, then determining the sulphuric acid thus formed using standard volumetric sodium hydroxide solution. Verification of the determination is described in the annexes A and B, respectively.

General information

Status
: Published

Publication date
: 1981-09

Stage
: International Standard confirmed [90.93]
Edition
: 1

Number of pages
: 7
Technical Committee :
ISO/TC 34/SC 3

ICS :
67.080.01
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