1、Designation:F234315Standard Test Method forLivestock,Meat,and Poultry Evaluation Devices1This standard is issued under the fixed designation F2343;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
2、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 test methods used to determinethe accuracy of electronic devices that evaluate composition orquality constituents of livestoc
3、k,meat,and poultry.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 This 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 t
4、o establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2F2463 Terminology for Livestock,Meat,and Poultry Evalu-ation Systems2.2 NIST Standard:3NIST Handbook 44 Electronic Livestock,Meat,and
5、 PoultryEvaluation Systems and/or Devices3.Terminology3.1 For definitions relating to livestock,meat,and poultryevaluation systems,see Terminology F2463.3.2 Definitions of Terms Specific to This Standard:3.2.1 error,ndifference between the“true”value of areference material and the indication receive
6、d from an elec-tronic evaluation device or system.3.2.2 meat,nall edible products and edible by-productsharvested by the meat-packing industry.3.2.3 reference material,nphysical object used as a basisfor comparison or calibration.3.2.4 test,nprocedure for determining a characteristic bydirect measur
7、ement.3.2.5 tolerance,nvalue fixing the limit of allowable erroror departure from true performance or value.3.2.6 value,measurement,ndata point or indication rep-resenting the outcome of a measurement or observation.4.Significance and Use4.1 Characteristics of livestock,meat,and poultry can beused t
8、o determine value.Devices have been and are currentlyunder development to evaluate these characteristics.The use ofthis test method will assist manufacturers,users,and regulatingauthorities to refer to uniform test methods to determine if thedevices are accurate.5.Apparatus5.1 Reference materials ma
9、y include,but are not limited to,test blocks to verify linear measurements for ultrasound andlinear probes,“phantom carcasses”to verify non-linear mea-surements used in devices that use magnetic energy absorption,photographic plates for visual imaging devices,or other meansto verify a characteristic
10、.5.2 Manufacturers provide reference materials to use in theinitial setup and calibration of evaluating devices before use;these reference materials can be used as standards for ensuringaccuracy after they are verified and documented by an inde-pendent third party.Reference material shall be uniquel
11、yidentified(for example,serial number)and retained for addi-tional testing and calibration to ensure the accuracy of thedevice as it is being used over time.5.3 Verification of the reference material requires:(1)thatthe reference materials stated measurements are accurate(thisrequires that the error
12、 of the labeled measurements can not begreater than one-third of the smallest allowable error accept-able when the reference material is used to verify an evaluatingdevice),and(2)the reference material is an appropriate proxyfor the characteristic being evaluated by the device or system(the referenc
13、e material is considered appropriate if it is hasbeen designed to be used as a reference material,and it isconstructed to retain its characteristics for a reasonable periodof time under conditions of normal use).1This test method is under the jurisdiction of ASTM Committee F10 onLivestock,Meat,and P
14、oultry Evaluation Systems and is the direct responsibility ofSubcommittee F10.20 on Device Performance Criteria.Current edition approved April 1,2015.Published May 2015.Originallyapproved in 2004.Last previous edition approved in 2009 as F2343 09.DOI:10.1520/F2343-15.2For referenced ASTM standards,v
15、isit 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.3Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 1070,Gaith
16、ersburg,MD 20899-1070,http:/www.nist.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Calibration and Standardization6.1 Reference MaterialThe user is responsible for ensur-ing that all reference materials used to test its evaluating devicehave been verified as accurate by an independent third party.The frequency of this verification shall be every two years orless.6.1.1 When an evaluation device or system is being cali-brated at
