Published
Reaction of a solution of iodine, sulphur dioxide, pyridine and 2-methoxyethanol with the water contained in the product dispersed previously in a mixture of methanol and formamide. The method described in ISO 760 is improved by determing the content directly using the special solvent.
PUBLISHED
EN ISO 5381:1994
90.93
Standard confirmed
Oct 13, 1999