ASTM_D_584_-_10.pdf

Designation:D58410Standard Test Method forWool Content of Raw WoolLaboratory Scale1This standard is issued under the fixed designation D584;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers a laboratory procedure for thedetermination of the wool base content and the clean wool fiberpresent in samples of raw wool.This test method is alsoapplicable to other animal fibers such as mohair,cashmere,alpaca,and camel hair.NOTE1Sampling of lots of raw wool in packages is covered inPractice D1060;the determination of vegetable matter and other alkali-insoluble impurities in scoured wool is covered in Test Method D1113;thedetermination of wool content on a commercial scale is covered in TestMethod D1334.For factors for the conversion of woolbase content to itsequivalent in terms of scoured wool,top,or noil of various commerciallyspecified compositions(formerly covered in the appendix of this testmethod),refer to Practice D2720.NOTE2Because of the trade practice the term weight is used in thistest method instead of the technically correct term mass.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD584 Test Method for Wool Content of Raw WoolLaboratory ScaleD1060 Practice for Core Sampling of Raw Wool in Packagesfor Determination of Percentage of Clean Wool FiberPresentD1113 Test Method for Vegetable Matter and Other Alkali-Insoluble Impurities in Scoured WoolD1334 Test Method for Wool Content of Raw WoolCommercial ScaleD2525 Practice for Sampling Wool for MoistureD2720 Practice for Calculation of Commercial Weight andYield of Scoured Wool,Top,and Noil for Various Com-mercial CompositionsD4845 Terminology Relating to WoolE337 Test Method for Measuring Humidity with a Psy-chrometer(the Measurement of Wet-and Dry-Bulb Tem-peratures)2.2 Other Standard:IWTO-19-85(E)Method for the Determination of WoolBase,Vegetable Matter Base;IWTO Clean Wool Content;IWTO Scoured Yield in Raw Wool33.Terminology3.1 For all terminology relating to D13.13,Wool and WoolFelt,refer to Terminology D4845.3.1.1 The following terms are relevant to this standard:clean wool fiber present,other alkali-insoluble impurities,oven-dried,raw wool,vegetable matter base,vegetable matterpresent,wool base,yield.3.2 For definitions of other textile terms used in this testmethod,refer to Terminology D123.4.Summary of Test Method4.1 The entire sample,or each test specimen drawn there-from in a specified manner,is weighed,scoured,dried,andreweighed.The oven-dry scoured wool is tested to determineits content of alcohol-extractable matter,mineral matter(ash),vegetable matter base,and other alkali-insoluble impurities.The wool-base content,laboratory scoured yield,clean woolfiber present,and vegetable matter present are calculated aspercentages of the mass of the raw wool sample.5.Significance and Use5.1 This test method is considered satisfactory for accep-tance testing of commercial shipments since this test methodhas been used extensively in the trade for acceptance testing.1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.13 on Wool and Felt.Current edition approved June 1,2010.Published June 2010.Originallyapproved in 1940.Last previous edition approved in 2005 as D584 96(2005).DOI:10.1520/D0584-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Specifications of Test Methods,International Wool Textile Organization,International Wool Secretariat,Ilkley,West Yorkshire,U.K.LS298PB.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.1.1 In case of dispute arising from differences in reportedtest results when using Test Method D584 for acceptancetesting of commercial shipments,the purchaser and the sup-plier should conduct comparative testing to determine if thereis a statistical bias between their laboratories.Competentstatistical assistance is recommended for the investigation ofbias.As a minimum,the two parties should take a group of testspecimens that are as homogenous as possible and that arefrom a lot of the type material in question.The test s