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ISO 349:2020

Hard coal — Audibert-Arnu dilatometer test

Publication date:   Jan 13, 2020

General information

90.92   Standard to be revised   Feb 2, 2026

ISO

ISO/TC 27/SC 5 Methods of analysis

International Standard

73.040   Coals

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Scope

This document specifies a method for determining the swelling properties of hard coal when heated under standard conditions in a dilatometer.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 349:1975

NOW

PUBLISHED
ISO 349:2020
90.92 Standard to be revised
Feb 2, 2026

REVISED BY

IN_DEVELOPMENT
ISO/CD 349