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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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ISO 5522:1981

ISO 5522:1981 Fruits, vegetables and derived products – Determination of total sulphur dioxide content

CDN $129.00

Description

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.

Edition

1

Published Date

1981-09-01

Status

PUBLISHED

Pages

7

Language Detail Icon

English

Format Secure Icon

Secure PDF

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.

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