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ISO/FDIS 19743

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Solid biofuels — Determination of content of heavy extraneous materials larger than 3,15 mm

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-07-2025

Superseded date

28-01-2026

£41.00
Excluding VAT

This document specifies a method for the determination of the content of heavy extraneous materials (HEM) larger than 3,15mm by the use of sink-and-float separation combined with elutriation. This document is applicable to woody biomass in accordance with ISO17225-1, and especially for hogfuel in accordance with ISO 17225-9.

NOTE 1 This method is designed to determine the level of impurities larger than 3,15mm with a specific density>1g/cm3, such as stones, glass, rubber, metal and certain types of plastics.

NOTE 2 During the processing of the sample, hand sorting of light impurities with a specific density≤1g/cm3 (e.g. plastic foil) can also be done.

NOTE 3 Some heavy extraneous materials (e.g. lumps of clay) can fall apart when submerged in water.

NOTE 4 Heavy extraneous materials smaller than 3,15mm can damage milling equipment, when reducing the material in size to produce laboratory samples.

Committee
ISO/TC 238
DocumentType
Draft
Pages
5
PublisherName
International Organization for Standardization
RevisionOf
Status
Superseded
Supersedes

£41.00
Excluding VAT