Standard Swedish standard · SS-ISO 16549:2008

Textiles - Unevenness of textile strands - Capacitance method (ISO 16549:2004, IDT)

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Standard Swedish standard · SS-ISO 16549:2008

Textiles - Unevenness of textile strands - Capacitance method (ISO 16549:2004, IDT)
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Scope
This International Standard describes a method, using capacitance measuring equipment, for determining the unevenness of linear density along the length of textile strands.
The method is applicable to tops, slivers, rovings, spun yarns and continuous filament yarns, made from either natural or man-made fibres, in the range of 4 tex (g/km) to 80 ktex (kg/km) for staple-fibre strands and 1 tex (g/km) to 600 tex (g/km) for continuous-filament yarns. It is not applicable to fancy yarns or to strands composed fully or partly of conductive materials such as metals; the latter require an optical sensor (see A.4).
The method describes the preparation of a variance-length curve, as well as the determination of periodicities of linear density. It covers also the counting of imperfections in the yarn, namely of neps and of thick and thin places.
Irregularities in the distribution of additives such as sizes, in moisture content and in fibre blending may increase the measured unevenness above its true value.

Subjects

General (59.060.01)


Buy this standard

Standard Swedish standard · SS-ISO 16549:2008

Textiles - Unevenness of textile strands - Capacitance method (ISO 16549:2004, IDT)
Subscribe on standards - Read more Dölj
Price: 875 SEK
standard ikon pdf

PDF

Price: 875 SEK
standard ikon

Paper

Price: 1 400 SEK
standard ikon pdf + standard ikon

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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-64960

Edition: 1

Approved: 2/8/2008

No of pages: 24