90.20 Standard under periodical review Jul 15, 2024
ISO
ISO/TC 174 Jewellery and precious metals
International Standard
39.060 Jewellery
This document describes an analytical procedure for the determination of platinum in platinum alloys with a nominal content up to 990 ‰ (parts per thousand), including alloys according to ISO 9202.
WITHDRAWN
ISO 11494:2014
PUBLISHED
ISO 11494:2019
90.20
Standard under periodical review
Jul 15, 2024