ASTM F2342 F2342M-2015 Standard Specification for Design and Construction of Composition or Quality Constituent Measuring Devices or Systems《组分或者质量成分测量装置或者系统的设计和施工的标准规格》.pdf
《ASTM F2342 F2342M-2015 Standard Specification for Design and Construction of Composition or Quality Constituent Measuring Devices or Systems《组分或者质量成分测量装置或者系统的设计和施工的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM F2342 F2342M-2015 Standard Specification for Design and Construction of Composition or Quality Constituent Measuring Devices or Systems《组分或者质量成分测量装置或者系统的设计和施工的标准规格》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: F2342/F2342M 15Standard Specification forDesign and Construction of Composition or QualityConstituent Measuring Devices or Systems1This standard is issued under the fixed designation F2342/F2342M; the number immediately following the designation indicates the yearof original adoption or
2、, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the requirements for designand construction of evalua
3、tion devices or systems for measur-ing composition or quality constituents of live animals, live-stock and poultry carcasses, and individual cuts of meat, or acombination thereof. Examples include, but are not limited, tohalf and whole carcasses, primals, subprimals, and boxed meat.1.2 The values st
4、ated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.3
5、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 to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2. Referenced Docu
6、ments2.1 ASTM Standards:2F2463 Terminology for Livestock, Meat, and Poultry Evalu-ation Systems3. 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 evaluation device, nequipment de
7、signed to measurecomposition or quality constituents used to determine the valueof live animals, carcasses, and individual cuts of meat (seeTerminology F2463).3.2.2 evaluation system, ndevice or group of devices usedto measure and record composition or quality constituents usedto determine the value
8、 of live animals, carcasses, and indi-vidual cuts of meat (see Terminology F2463).3.2.3 fault condition, nabnormal condition that may causea reduction in, or loss of the capability of, a functional unit toperform a required function.3.2.3.1 DiscussionPrincipally, a fault is the result of anerror in
9、the data contained in or flowing through a measuringdevice or system.3.2.4 inch-pound unit, ninASTM standards, unit based onthe inch and pound, commonly used in the United States ofAmerica and defined by the National Institute of Standards andTechnology, including certain other units accepted for us
10、e withthe units.3.2.4.1 DiscussionInch-pound, also known as US Cus-tomary Units, are one type of non-SI units.Another example ofnon-SI units is the centimetre gram second (cgs) system.3.2.5 indicating element, nelement incorporated in a mea-suring device or system by means of which its output, relat
11、iveto quantity or quality measurement, is displayed or “read” fromthe device itself as, for example, a digital indicator.3.2.6 meat, nedible product(s) harvested by the livestockor poultry packing industries (see Terminology F2463).3.2.7 National Type Evaluation Program (NTEP),nprogram administered
12、by the National Conference onWeights and Measures, Inc. (NCWM) in cooperation with theNational Institute of Standards and Technology (NIST), stateand local governments, and the private sector for determining,on a uniform basis, conformance of a type, with an applicablestandard.3.2.8 recording elemen
13、t, nelement incorporated in a mea-suring device by means of which its output, relative to quantityor quality measurement, is permanently recorded on a tape,ticket, card, electronic storage medium, or the like, in the formof a printed, stamped, punched, perforated representation, or aretrievable elec
14、tronic record.3.2.9 reference material, nphysical object used as a basisfor comparison or calibration.1This specification is under the jurisdiction of ASTM Committee F10 onLivestock, Meat, and Poultry Evaluation Systems and is the direct responsibility ofSubcommittee F10.10 on Design Specification.C
15、urrent edition approved Nov. 1, 2015. Published December 2015. Originallyapproved in 2003. Last previous edition approved in 2009 as F2342/F2342M 09.DOI: 10.1520/F2342_F2342M-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org.
16、For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2.10 SI unit, nin ASTM standards, unit of the Interna-tional System
17、 of Units (SI) and other units specifically ap-proved in IEEE/ASTM SI 10 as a unit for use with SI.3.2.11 units of measure, nfor the purpose of thisspecification, the units of measure shall be the InternationalSystem of Units (SI).3.2.11.1 DiscussionSI units are divided into three classes:base units
18、, derived units, and supplementary units.4. Materials and Manufacture4.1 Indicators and Recording ElementsAll evaluation sys-tems or devices shall be provided with an indicating element,and all systems must include a recording element appropriatein design and adequate in amount for purposes of measu
19、ring,training, calibrating, and testing. The recording of measure-ments may be an electronic record. Primary indications andrecorded representations shall be clear, definite, accurate, andeasy to read during normal use and testing of the device.4.2 The minimum character size of all indications neces
20、saryto the measurement process shall be not less than 4 mm andeasy to read under any ambient condition.4.3 Any measuring or evaluation device or system without abuilt-in recording element shall be provided with a communi-cation interface that permits interfacing with a recordingelement.4.4 All measu
21、ring or evaluation devices or systems musteither (1) automatically maintain a ready-to-measure or evalu-ate condition, (2) automatically display a visual indication andrecord a fault condition, or (3 ) provide no indication ofmeasurement or evaluation.5. Physical Properties5.1 Units of Measure:5.1.1
22、 All measuring devices or evaluation systems shallindicate, or record in the appropriate unit of measure for thetechnology applied.5.1.1.1 The value of the smallest unit indicated or recordedshall not exceed 0.05 in. or 1.0 mm for devices providing alinear measurement, or 0.1 % of capacity.5.2 Opera
23、ting Temperature:5.2.1 All measuring devices or systems shall operate withinapplicable tolerance requirements over the normal ambienttemperature range of 10 to 40C 14 to 104F unless markedwith a restricted temperature range. If the temperature range isnarrower than 10 to 40C 14 to 104F, the ambientt
24、emperature at the time of device calibration shall be posted onthe device. If a measuring device or system is marked with arestricted operating temperature range, the minimum operatingtemperature range shall be not less than 30C 54F.5.2.2 A device or system shall not display or record anyusable valu
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