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ISO 1136:2015

Wool — Determination of mean diameter of fibres — Air permeability method ISO 1136:2015

Publication date:   Mar 3, 2015

General information

90.93 Standard confirmed   Nov 26, 2020

ISO

ISO/TC 38/SC 23 Fibres and yarns

International Standard

59.060.10   Natural fibres

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Scope

ISO 1136:2015 specifies a method for the determination of the mean diameter of wool fibres, using an apparatus which passes a current of air through a bundle of fibres.
This International Standard is applicable to clean, unmedullated wool fibres dispersed in a uniform, open state. It provides a method particularly suitable for combed slivers. The dichloromethane extractable matter content of the specimen must not exceed 1,0 %. It is applicable to oil-combed slivers after cleaning with an organic solvent.
The method described in this International Standard is less accurate for lambswool and for wool which is appreciably medullated (see Annex D) and heavily dyed wool.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 1136:1976

NOW

PUBLISHED
ISO 1136:2015
90.93 Standard confirmed
Nov 26, 2020