ISO 5522:1981

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

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
Edition
: 1

Number of pages
: 7
Technical Committee
: ISO/TC 34/SC 3 Fruits and vegetables and their derived products
ICS
:
67.080.01 Fruits, vegetables and derived products in general