1999ISO 6998:1997/cor 1:1999 Carbonaceous materials for the production of aluminium - Pitch for electrodes - Determination of coking value; Technical Corrigendum 1
1997ISO 6998:1997 Carbonaceous materials for the production of aluminium - Pitch for electrodes - Determination of coking value
1984ISO 6998:1984 Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of coking value