ISO 3702:1976

Anhydrous hydrogen fluoride for industrial use — Determination of sulphur dioxide content — Iodometric method

Applicable to products having SO2 contents between 0.002 % (m/m) and 0.20 % (m/m). The principle consists in addition of a measured volume of iodine solution to a test portion. Back-titration of the excess iodine using a standard volumetric sodium thiosulphate solution and calculation of the SO2 content from the amount of iodine used.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

71.060.30

Statut:

Annulée

Date de Publication:

1976-05-31

Numéro Standard:

ISO 3702:1976