The methods for chemical analysis of zinc and zinc alloys—The determination of aluminum content—The chromazurol S-polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometric method and the EDTA titrimetric method
Methods for chemical analysis of zinc concentrates - Part 1:Determination of zinc content - Precipitate separation-Na2EDTA titrimetric method and extractive separation-Na2EDTA titrimetric method