ISO 5522:1981

Fruits, vegetables and derived products — Determination of total sulphur dioxide content

NORMA vydaná dňa 1.9.1981

Anglicky -
Elektronické PDF (82.80 EUR)
Anglicky -
Tlačené (82.80 EUR)

Francúzsky -
Elektronické PDF (82.80 EUR)
Francúzsky -
Tlačené (82.80 EUR)

The information about the standard:

Designation standards: ISO 5522:1981
Publication date standards: 1.9.1981
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: International technical standard
Kategória: Technické normy ISO

Annotation of standard text ISO 5522:1981 :

Description / 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.