1. Scope
1.1 This test method covers the estimation of the average fiber diameter of wool fibers by use of the Port-Ar and the WIRA Fiber Fineness Meter instrument, which operate on the air-flow principle. Other air-flow instruments have not been tested with this method. The method is directly applicable to non-medullated, carded wool and wool top.
1.2 This test method is applicable to grease wool and scoured wool after the samples of such materials have been prepared as directed in Test Method D 2130. Note 1The use of the Micronaire instrument for measuring the fineness of cotton fibers is covered in Test Method D 1448.The assignment of grade for wool and mohair is covered in Specifications D 3991 and D 3992.
2. Referenced Documents
D1060 Practice for Core Sampling of Raw Wool in Packages for Determination of Percentage of Clean Wool Fiber Present
D123 Terminology Relating to Textiles
D1448 Test Method for Micronaire Reading of Cotton Fibers
D2130 Test Method for Diameter of Wool and Other Animal Fibers by Microprojection
D3991 Specification for Fineness of Wool or Mohair and Assignment of Grade
D3992 Specification for Fineness of Wool Top or Mohair Top and Assignment of Grade
D4845 Terminology for Wool
IWTO-28-82(E) Determination By The Airflow Method of the Mean Fibre Diameter of Core Samples of Raw Wool
IWTO-6-92(E) Method of Test for the Determination of The Mean Diameter of Wool Fibers in Combed Sliver Using the Air-Flow Apparatus
Index Terms
air-flow; diameter; wool; ICS Number Code 59.060.10; 59.060.10
DOI: 10.1520/D1282-05

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