1. Scope

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 D 5103.

1.2 This test method covers procedures using the Fibrosampler Model 335A (inch-pound units), the Fibrosampler Model 335B (SI units), 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.

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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D123 Terminology Relating to Textiles

D1447 Test Method for Length and Length Uniformity of Cotton Fibers by Photoelectric Measurement

D2258 Practice for Sampling Yarn for Testing

D3333 Practice for Sampling Manufactured Staple Fibers, Sliver, or Tow for Testing

D3888 Terminology for Yarn Spinning Systems

D3990 Terminology Relating to Fabric Defects

D4849 Terminology Related to Yarns and Fibers

D5103 Test Method for Length and Length Distribution of Manufactured Staple Fibers (Single-Fiber Test)

Keywords

length; multiplelength staple fibers; overlength staple fibers ; staple fibers ;

ICS Code

ICS Number Code 59.060.20 (Man-made fibres)

DOI: 10.1520/D3513-02R07

ASTM International is a member of CrossRef.