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Significance and Use
5.1 This test method specifies a sampling and testing procedure for the measurement of average fiber diameter and variation in diameter of animal fibers as required in Test Method D2968.
5.2 Test Method D2130 for testing wool and other animal fibers for average fiber diameter is considered satisfactory for acceptance testing of commercial shipments since current estimates of between-laboratory precision are acceptable and the method has been used extensively in the trade for acceptance testing. In cases of disagreement arising from differences in values reported by the purchaser and the seller when using this method for acceptance testing, the statistical bias, if any, between the laboratory of the purchaser and the laboratory of the seller should be determined with each comparison being based on the testing of specimens randomly drawn from one sample of material of the type being evaluated.
1.1 This test method covers a procedure, using the microprojector, for the determination of the average fiber diameter and the fiber diameter variation on wool and other animal fibers, such as mohair, cashmere, alpaca, camel's hair, etc. (Note 1) in their various forms.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D123 Terminology Relating to Textiles
D584 Test Method for Wool Content of Raw Wool--Laboratory Scale
D629 Test Methods for Quantitative Analysis of Textiles
D1060 Practice for Core Sampling of Raw Wool in Packages for Determination of Percentage of Clean Wool Fiber Present
D1776 Practice for Conditioning and Testing Textiles
D2252 Specification for Fineness of Types of Alpaca
D2258 Practice for Sampling Yarn for Testing
D2816 Test Method for Cashmere Coarse-Hair Content in Cashmere
D2968 Test Method for Med and Kemp Fibers in Wool and Other Animal Fibers by Microprojection
D3992 Specifications for Fineness of Wool Top or Mohair Top and Assignment of Grade
D4845 Terminology Relating to Wool
E380 Practice for Use of the International System of Units (SI) (the Modernized Metric System)
Other StandardsFederal Standard, Official Standard of the United Measurement Method for Determining Grade of Wool, Section 31.204 Service and Regulatory Announcement, No. 135, U. S. Department of Agriculture, C & MS, April 1966. IWTO-8-66(E) Method of Determining Wool Fiber Diameter by the Projection Microscope International Wool Textile Organization, International Wool Secretariat, Raw Wool Services, Valley Drive, Ilkley, Yorkshire LS29 8PB, England.
ICS Number Code 59.060.10 (Natural fibres)
UNSPSC Code 11151508(Wool fibers)
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ASTM D2130-13, Standard Test Method for Diameter of Wool and Other Animal Fibers by Microprojection, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top