90.93 Standard confirmed May 21, 2020
ISO
ISO/TC 183 Copper, lead, zinc and nickel ores and concentrates
International Standard
73.060.99 Other metalliferous minerals
Published
This International Standard specifies a hydroxide precipitation and EDTA titrimetric method for the determination of
the zinc content of zinc ores and concentrates containing 10 % (m/m) to 60%(m/m) zinc.
PUBLISHED
ISO 13658:2000
90.93
Standard confirmed
May 21, 2020