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.
Life cycle
NOW
PUBLISHED EN ISO 5381:1994 90.93
Standard confirmed Oct 13, 1999
