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ISO/TS 4699:2022

Hard Coal — Determination of plastometric indices — Manual method

General information
Valid from 17.08.2022
ICS Groups
73.040 Coals
Directives or regulations
None
Standard history
Status
Date
Type
Name
17.08.2022
Main
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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