Manganese ores -- Determination of chromium content -- Diphenylcarbazide photometric method and silver persulphate titrimetric method
This standard was last reviewed* in 2016.
Method I is applicable to manganese ores having chromium contents less than 0.1 % (m/m), method II is applicable to manganese ores having chromium contents greater than 0.1 % (m/m). This second edition cancels and replaces the first edition (i.e. ISO 619-1975). Should be read in conjunction with ISO 4297.
Document published on: 1981-12-01 Edition: 2 (Monolingual) ICS: 73.060.20 Status: Published Stage: 90.93 (2016-02-23) TC/SC: ISO/TC 132 Number of Pages: 4
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