ISO 5522:1981

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

Abstract Preview

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