95.99 Withdrawal of Standard Aug 27, 2020
ISO
ISO/TC 183 Copper, lead, zinc and nickel ores and concentrates
International Standard
73.060.99 Other metalliferous minerals
Withdrawn
This International Standard specifies an acid decomposition, solvent extraction, flame atomic absorption spectrometric procedure for the determination of gold in zinc sulfide concentrates.
The method is applicable to the determination of gold in zinc concentrates containing up to 60 % (m/m) zinc in the form of zinc blende and related materials.
The method is applicable to gold contents from 0,5 g/t to 12 g/t.
WITHDRAWN
ISO 15249:1998
95.99
Withdrawal of Standard
Aug 27, 2020