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BS EN ISO 20705:2020

BS EN ISO 20705:2020

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Current

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Textiles. Quantitative microscopical analysis. General principles of testing

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-23-2020

Publisher

British Standards Institution

This document specifies common methods for the quantitative microscopical analysis of various mixtures of fibres.

This document specifies common methods for the quantitative microscopical analysis of various mixtures of fibres. The methods described are based on the use of a light microscope (LM) or a scanning electronic microscope (SEM), on the measurements of the fibre apparent diameter (preparation of longitudinal views) or on the measurements of fibre section area (preparation of cross views), depending on the section shape of the fibres. NOTE1 When the section shape is circular or almost circular, the longitudinal views are appropriate. For the other section shapes, the cross views are adequate and AnnexA lists conventional density of fibres to be used for the calculation of the mass percentage of the components. Pictures of section shapes of fibres can be found in ISO/TR11827 . NOTE2 AnnexB presents statistical data on fibre diameter measurements (longitudinal view) and on fibre area measurements (cross view).The given procedures apply to fibres in any textile form when mixtures of fibres cannot be separated by manual methods or by chemical methods.Examples of mixtures of fibres are cashmere and wool, cotton and flax, flax and hemp.

Committee
TCI/100
DocumentType
Standard
ISBN
9780580981524
Pages
26
PublisherName
British Standards Institution
Status
Current

Standards Relationship
EN ISO 20705:2020 Identical
ISO 20705:2019 Identical

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Hardcopy - English
PDF - English
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