ISO/TS 4699:2022

International Standard   Current Edition
· Approved on 17 August 2022 ·

Hard Coal — Determination of plastometric indices — Manual method

Coals
Including lignites

ISO/TS 4699:2022 Files

null Pages
Current Edition

ISO/TS 4699:2022 Scope

This document specifies a manual method for the determination of plastometric indices. These indices are the maximum thickness of the plastic layer (Y, mm) and the final contraction value (X, mm).

This document is applicable for hard coals with a determined ash level less than 15 % on a dry basis, as described in ISO 11722 and ISO 1171.

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