Norme ASTM D3513-02R12

Méthode d'essai standard pour la teneur en fibres surlongues des fibres discontinues fabriquées
Date de publication
59.060.20 Fibres chimiques
Sommaire :

1.1 This test method covers the determination of the percent by number of overlength or multiple length fibers in a sample of manufactured cut staple. The method is applicable to fiber taken immediately after manufacturing, from the bale, or from partially processed stock.

Note 1—For measurement of length and length distribution of manufactured staple fibers, refer to Test Method D5103.

1.2 This test method covers procedures using the Fibrosampler Model 335A (inch-pound unit
s), the Fibrosampler Model 335B (SI unit
s), and Fibrosampler combs Model 336.

1.2.1 The Fibrosampler Model 335A is equipped with a sample plate that has 15.8-mm (5/8-in.) diameter sample holes and is recommended for use on blended staple taken from the fiber blender or from a carding machine.

1.2.2 The Fibrosampler Model 335B is equipped with a sample plate that has 10-mm (0.4-in.) diameter sample holes and is recommended for use on unblended staple as may be taken from the fiber cutter or from a bale of staple fiber.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. The values stated in each unit are not exact equivalents; therefore, each unit must be used independently of the other.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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