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

Standard No.

ISO 5522:1981

Release Date

1981

Published By

International Organization for Standardization (ISO)

Latest

ISO 5522:1981

Scope

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.

ISO 5522:1981 history

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