Objavljen
Establishes criteria for the purity and describes the test methods for identity tests, residue after ignition, heavy metals content, iron content, appearance of solution. Annex A describes preparation of the standard ammonium cerium(IV) hexanitrate solution.
POVUČEN
ISO 423:1976
OBJAVLJEN
ISO 423:1994
90.93
Odluka o potvrđivanju standarda
6. 6. 2026.