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ISO 157:1996Withdrawn

Coal — Determination of forms of sulfur

Charbon — Détermination de la teneur en différentes formes de soufre

This edition has been replaced by ISO 157:2025.

Abstract / scope

Specifies methods of determining the sulfate and pyrite sulfur contents of coals, including brown coals and methods of calculating the amount of organic sulfur present. Replaces the first edition.

Life cycle

Amendments & corrigenda

ISO 157:1996/Cor 1:1999WithdrawnCoal — Determination of forms of sulfur — Technical Corrigendum 1International Standard · Published 26 Aug 1999 · ISO/TC 27/SC 5

Replaces

ISO 157:1975WithdrawnHard coal — Determination of forms of sulphurInternational Standard · Published 1 Jan 1975 · ISO/TC 27/SC 5

Replaced by

ISO 157:2025PublishedCoal — Determination of forms of sulfurInternational Standard · Published 15 May 2025 · ISO/TC 27/SC 5