ASTM_D_4845_-_10e2.pdf

Designation:D4845102Standard Terminology Relating toWool1This standard is issued under the fixed designation D4845;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.1NOTETerms were transferred editorially from subcommittee standards in February 2013.2NOTESection 1 was added and editorial changes were made in September 2013.1.Referenced Documents1.1 ASTM Standards:2D123 Terminology Relating to TextilesD461 Test Methods for Felt(Withdrawn 2003)3D519 Test Method for Length of Fiber in Wool TopD584 Test Method for Wool Content of Raw WoolLaboratory ScaleD1060 Practice for Core Sampling of Raw Wool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 WoolD1234 Test Method of Sampling and Testing Staple Lengthof Grease WoolD1282 Test Method for Resistance to Airflow as an Indica-tion of Average Fiber Diameter of Wool Top,Card Sliver,and Scoured WoolD1283 Test Method for Alkali-Solubility of WoolsD1294 Test Method for Tensile Strength and Breaking Te-nacity of Wool Fiber Bundles 1-in.(25.4-mm)GageLengthD1334 Test Method for Wool Content of Raw WoolCommercial ScaleD1574 Test Method for Extractable Matter in Wool andOther Animal FibersD1575 Test Method for Fiber Length of Wool in ScouredWool and in Card SliverD1576 Test Method for Moisture in Wool by Oven-DryingD1770 Test Method for Neps,Vegetable Matter,and ColoredFiber in Wool TopD2118 Practice for Assigning a Standard Commercial Mois-ture Content for Wool and its ProductsD2130 Test Method for Diameter of Wool and OtherAnimalFibers by MicroprojectionD2165 Test Method for pH ofAqueous Extracts of Wool andSimilar Animal FibersD2252 Specification for Fineness of Types of AlpacaD2462 Test Method for Moisture in Wool by DistillationWith TolueneD2475 Specification for FeltD2524 Test Method for Breaking Tenacity of Wool Fibers,Flat Bundle Method18-in.(3.2-mm)Gage LengthD2525 Practice for Sampling Wool for MoistureD2720 Practice for Calculation of Commercial Weight andYield of Scoured Wool,Top,and Noil for Various Com-mercial CompositionsD2816 Test Method for Cashmere Coarse-Hair Content inCashmereD2817 Specification for Maximum Cashmere Coarse-HairContent in CashmereD2968 Test Method for Med and Kemp Fibers in Wool andOther Animal Fibers by MicroprojectionD3991 Specifications for Fineness of Wool or Mohair andAssignment of GradeD3992 Specifications for Fineness of Wool Top or MohairTop and Assignment of GradeD4510 Test Method for Counting Partial Cleavages in Wooland Other Animal FibersD4845 Terminology Relating to WoolD6466 Test Method for Diameter of Wool and OtherAnimalFibers By Sirolan-Laserscan Fiber Diameter AnalyserD6500 Test Method for Diameter of Wool and OtherAnimalFibers Using an Optical Fiber Diameter Analyser2.Terminologyacid content,n of felt,the number of milliequivalents of acidpresent per unit weight of felt,measured under prescribedconditions.D461alkali-solubility,nin wool,the percent of clean wool that issoluble in a specified alkaline solution under controlledconditions of temperature and time.D12831This terminology 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 July 2010.Originally approvedin 1988.Last previous edition approved in 2009 as D4845 09.DOI:10.1520/D4845-10E02.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 alpaca,nthe fleece and fiber produced by the alpaca,ananimal of the genus Llama(Lama glama pacus).The fiber isobtained from several species,namely,Huacaya and Suri.D2252DISCUSSIONAlpaca is normally classified according to type,repre-senting particular combinations of characteristics appropriate to aspecific use,or descriptive of geographic origin,breed or species ofanimal,or preparation for market.animal fiber,nany natural protein-base fiber.D1574,D4510aqueous extract,nin wool testing,the solution obtained bydigesting a material with water or with a sodium chloridesolution to dissolve soluble materials.D2165average fiber diameter,nin wool and other animal fibers,the average width of a group of fibers when measured on aprojected image.D2130,D2252,D3991,D3992average fiber diameter,nthe arithmetic mean width of agroup of fibers.D6500DISCUSSIONIn wool and other animal fibers,all animal fibers,regard