1、Designation: F 2342/F 2342M 09Standard Specification forDesign and Construction of Composition or QualityConstituent Measuring Devices or Systems1This standard is issued under the fixed designation F 2342/F 2342M; the number immediately following the designation indicates theyear of original adoptio
2、n or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. 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 el
3、ectronic 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 value
4、s stated 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.
5、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 to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2. Referenced
6、Documents2.1 ASTM Standards:2F 2463 Terminology for Livestock, Meat, and PoultryEvaluation Systems3. Terminology3.1 For definitions relating to livestock, meat, and poultryevaluation systems, see Terminology F 2463.3.2 Definitions of Terms Specific to This Standard:3.2.1 electronic device, ndevice o
7、perating by the prin-ciples of electronics, which may consist of one or moresubassemblies and perform a specific function.3.2.1.1 DiscussionElectronic devices may be completemeasuring instruments (for example, pH meter, compositionmeasuring device) or part of a measuring instrument (forexample, meas
8、uring element, indicator).3.2.2 electronic system, nelectronic device or group ofelectronic devices used to measure and record composition orquality constituents.3.2.3 fault condition, nabnormal condition that may causea reduction in, or loss of the capability of, a functional unit toperform a requi
9、red function.3.2.3.1 DiscussionPrincipally, a fault is the result of anerror in the data contained in or flowing through an electronicmeasuring device or system.3.2.4 inch-pound unit, nin ASTM standards, unit basedon the inch and pound, commonly used in the United States ofAmerica and defined by the
10、 National Institute of Standards andTechnology, including certain other units accepted for use 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 elemen
11、t, nelement incorporated in a mea-suring device or system by means of which its output, relativeto quantity or quality measurement, is displayed or “read” fromthe device itself as, for example, a digital indicator.3.2.6 meat, nall edible products and by-products har-vested by the meat-packing indust
12、ry.3.2.7 National Type Evaluation Program (NTEP),nprogram administered 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, c
13、onformance of a type, with an applicablestandard.3.2.8 recording element, 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 pri
14、nted, stamped, punched, perforated representation, or aretrievable electronic record.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.Current edition ap
15、proved March 1, 2009. Published April 2009. Originallyapproved in 2003. Last previous edition approved in 2006 as F 2342 06.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, r
16、efer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.9 reference material, nphysical object used as a basisfor comparison or calibration.3.2.10 SI unit, nin ASTM standards
17、, unit of the Interna-tional System 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 this specifi-cation, the units of measure shall be the International System ofUnits (SI).3.2.11.1 DiscussionSI units are
18、divided into three classes:base units, derived units, and supplementary units.4. Materials and Manufacture4.1 Indicators and Recording ElementsAll measuringdevices or evaluation systems shall be provided with anindicating element, and all systems must include a recordingelement appropriate in design
19、 and adequate in amount forpurposes of measuring, training, calibrating, and testing. Therecording of measurements may be an electronic record.Primary indications and recorded representations shall be clear,definite, accurate, and easy to read during normal use andtesting of the device.4.2 The minim
20、um character size of all indications necessaryto 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 interfa
21、cing with a recordingelement.4.4 All measuring 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. Phys
22、ical Properties5.1 Units of Measure:5.1.1 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 me
23、asurement, or 0.1 % of capacity for units measuringmass.5.2 Operating 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 tem
24、perature range isnarrower than 10 to 40C 14 to 104F, the ambienttemperature 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.
25、2.2 A device or system shall not display or record anyusable values until the operating temperature necessary foraccurate measurements and a stable ready to measure referencepoint has been attained.5.3 A device or system shall be designed to operate withinprescribed tolerances when subjected to envi
26、ronmental distur-bances normally found in the environment in which it is used.Examples of disturbances include but are not limited to RadioFrequency Interference (RFI), Electromagnetic Interference(EMI), acoustic changes, ambient light, and so forth.5.3.1 If the measuring accuracy of a measurement d
27、evice isadversely affected by the speed of operation, the device mustbe marked with a maximum number of measurements per hour.6. Other Requirements6.1 Error Message(s):6.1.1 All measurement devices or systems shall be equippedwith a mechanism that provides a visual and recorded faultindication or me
28、ssage if any condition causes an invalidmeasurement as defined by the manufacturer.6.1.2 If the placement of the measurement device is criticalto the accuracy of the measurement process for any measuringor evaluation device or system used for evaluating carcasses:6.1.2.1 The device shall leave a pla
29、cement mark or dot onthe carcass being evaluated, or6.1.2.2 The device or system shall not accept the measure-ment or shall indicate a fault condition if the device isinappropriately placed on a carcass that is properly presentedfor measurement or evaluation.6.1.3 If the application pressure of the
30、sensor is critical tothe accuracy of the measurement or evaluation process for anymeasurement or evaluation device or system used for evaluat-ing carcasses, the sensor shall automatically allow measure-ment or evaluation only when the application pressure is withinthe range prescribed by the manufac
31、turer.6.2 Prior to installation, the manufacturer of a measuringdevice or system must supply all manuals and checklistsnecessary for proper installation, operation, and maintenanceof the device or system. Any manual updates or revisions shallbe made available to the user by the manufacturer.6.3 Prio
32、r to installation, the manufacturer of a measuringdevice or system must supply reference materials, after theyare verified and documented with traceability to a nationalstandard by an independent third party, for use in the initialsetup and calibration of evaluating devices before use. Thesereferenc
33、e materials can be used as standards for ensuringaccuracy. Reference materials shall be uniquely identified (forexample, serial number) and shall be retained by the device orsystem owner for subsequent verification of device accuracyand calibration when required.7. Product Marking7.1 All measuring o
34、r evaluation devices or systems shall bepermanently marked for the purpose of identification with thefollowing information:7.1.1 Name, initials, or trademark of the manufacturer ordistributor.7.1.2 Model designation that positively identifies the patternor design of the device prefaced by the term “
35、Model,” “Type,”or “Pattern.” These terms may be followed by the term“Number” or an abbreviation of that word. The abbreviationfor the word “Number” shall, as a minimum, begin with theletter “N” (for example, No or No.). The abbreviation for theword “Model” shall be “Mod.” or “Mod”.F 2342/F 2342M 092
36、NOTE 1Prefix lettering may be initial capitals, all capitals, or alllowercase.7.1.3 Except for equipment with no moving or electroniccomponent parts, a non-repetitive serial number prefaced bywords, an abbreviation, or a symbol that clearly identifies thenumber as the required serial number prefaced
37、 by the words“Serial Number” or an abbreviation of that term.Abbreviationsfor the word “Serial” shall, as a minimum, begin with the letter“S,” and abbreviations for the word “Number” shall, as aminimum, begin with the letter “N” (for example, S/N, SN,Ser. No, and S No.).7.1.4 For devices that have a
38、n NTEP Certificate of Con-formance (CC) Number or a corresponding CC addendumnumber, the NTEP CC shall be prefaced by the terms “NTEPCC,” “CC,” or “Approval.” These terms may be followed bythe term “Number” or an abbreviation of that word. Theabbreviation for the word “Number” shall, as a minimum,be
39、gin with the letter “N” (for example, No or No.).7.2 The required information shall be so located that it isreadily observable without the necessity of disassembling ofany parts requiring the use of any means separate from thedevice or system. The required information may be displayedon the indicato
40、r screen either continuously or by initiating akeystroke. If a keystroke is required to display markinginformation, the key shall be clearly identified.8. Calibration and Configuration Security8.1 Sealing of Calibration and Configuration Parameters:8.1.1 Adevice or system shall be designed with prov
41、ision(s)for applying a security seal that must be broken or for usingother approved means of providing security (for example, datachange audit trail available at the time of inspection), beforeany change that detrimentally affects the metrological integrityof the device can be made to any measuring
42、element.8.1.2 Audit trails shall use the format set forth in Table 1.9. Keywords9.1 composition measuring devices; design specifications;livestock; poultry; quality constituent measuring devicesASTM International takes no position respecting the validity of any patent rights asserted in connection w
43、ith any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible tec
44、hnical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful considera
45、tion at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr H
46、arbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(w
47、ww.astm.org).TABLE 1 Categories of Devices and Methods of Sealing for Meat, Poultry, and Livestock Evaluation SystemsCategories of Devices Method of SealingCategory 1: No remote configuration Seal by physical seal or two event counters: one for calibrationparameters and one for configuration paramet
48、ers.Category 2: Remote configuration capability, but access iscontrolled by physical hardware. Device shall clearly indicate thatit is in the remote configuration mode and record such a messageif capable of printing in this mode.The hardware enabling access for remote communications mustbe at the de
49、vice and sealed using a physical seal or two eventcounters: one for calibration parameters and one for configurationparameters.Category 3: Remote configuration capability access may beunlimited or controlled through a software switch (for example,password)An event logger is required in the device; it must include an eventcounter (000 to 999), the parameter ID, the date and time of thechange, and the new value of the parameter. A printed copy of theinformation must be available through the device or throughanother on-site device. The event logger shall
