90.93 Standard confirmed Sep 25, 2024
ISO
ISO/TC 226 Materials for the production of primary aluminium
International Standard
71.100.10 Materials for aluminium production
ISO 6257:2002 specifies methods for sampling and preparing samples prior to testing of binder pitch used in the manufacture of electrodes for the electrolytic production of aluminium.
These methods are applicable to grades of pitch in liquid or solid form, the latter having softening points higher than 30 °C (determined according to the method specified in ISO 5940), in bulk, or in a number of containers making up one batch at sites of manufacture, storage, or delivery. Sampling methods and sampling plans for large consignments, or lots, of pitch in liquid form during the loading and unloading of ships are included.
WITHDRAWN
ISO 6257:1980
PUBLISHED
ISO 6257:2002
90.93
Standard confirmed
Sep 25, 2024