90.60 Close of review Dec 3, 2025
ISO
ISO/TC 132 Ferroalloys
International Standard
77.100 Ferroalloys
This part of ISO 4552 specifies the methods for sampling and sample preparation for the determination of the chemical composition of a consignment of the listed ferroalloys.
PUBLISHED
ISO 4552-2:1987
90.60
Close of review
Dec 3, 2025