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Homepage>ISO 6989:1981-Textile fibres — Determination of length and length distribution of staple fibres (by measurement of single fibres)
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sklademVydáno: 1981
ISO 6989:1981-Textile fibres — Determination of length and length distribution of staple fibres (by measurement of single fibres)

ISO 6989:1981

ISO 6989:1981-Textile fibres — Determination of length and length distribution of staple fibres (by measurement of single fibres)

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Označení normy:ISO 6989:1981
Počet stran:6
Vydání:1
Vydáno:1981
DESCRIPTION

ISO 6989:1981


Specifies three methods for determination - method A: on a straightened fibre on a graduated rule, under a light tension applied with the aid of forceps and grease; - method B: measurement, using an opisometer, of the length of the image of fibre enlarged by projection on a screen; - method C: by use of a semi-mechanical device. - Intended to replace two existing International Standard, ISO 270 and ISO 1822.
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