Withdrawn
Establishes criteria for the purity and describes the test methods for insoluble matter content, heavy metals content, iron content, alkalinity, reaction to ammoniacal silver nitrate, thiosulfate, appearance of solution.
WITHDRAWN
ISO 418:1976
WITHDRAWN
ISO 418:1994
95.99
Withdrawal of Standard
Dec 20, 2001
PUBLISHED
ISO 418:2001