1、Designation: F2918 11Standard Test Method forWeighing a Bicycle1This standard is issued under the fixed designation F2918; 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
2、 the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers requirements for weighing andmarketing bicycles, including all adult, and childrens bicycles.1.2 This standard may contain test methods that d
3、o notentirely simulate real life situations. The test methods aredesigned to give reproducible results in a laboratory and,thereby, a means for product comparison.1.3 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.4 This stan
4、dard 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 A
5、STM Standards:2E4 Practices for Force Verification of Testing Machines3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 aftermarket, ncomponents intended to be fitted to abicycle but not included as original equipment with the bicycle.3.1.2 as-sold bicycle weight, nthe weight of
6、 the completebicycle with all original equipment as sold to the customerminus any packaging materials and aftermarket accessories.Examples of potential original equipment includes: kickstand,reflectors, chain guards, racks, fenders, pedals, water bottlesand cages, etc.3.1.3 bicycle, ntwo-wheeled, si
7、ngle-track, articulated ve-hicle that is solely human powered.3.1.4 bicycle frame, nthe structural member that supportsthe seat with rear connection for the rear wheel, front connec-tion via the head tube for the fork and lower connection for thecrank/pedal assembly.3.1.5 minimum bicycle weight, nth
8、e combined weight ofthe frame and components necessary to ride the bicycle, andchange gears (if bicycle is multi-speed), minus the pedals.Handlebars, stem, brakes, seat, seatpost, and any handlebarcoverings are to be included.3.1.6 size, nthe marketed representation of the bicycleframe dimensions th
9、at may or may not be determinable frommeasurement. Examples of sizes are: small, medium, large, 19inch, 21 inch, 56 cm, 58 cm.4. Summary of Test Method4.1 Representative samples of bicycles are weighed on acalibrated scale, using two methods.5. Significance and Use5.1 The minimum and as-sold weight
10、of a bicycle areproperties used by consumers to evaluate bicycles. The weightmay also be used for specifications, manufacturing standards,and quality control.6. Apparatus6.1 Calibrated Scale, within the weight range of the bicycle.7. Sampling, Test Specimens, and Test Units7.1 Test specimens shall b
11、e new and in unused condition,selected randomly from a production lot of a given model ofbicycle. The bicycle shall conform in all respects to themanufacturers specifications for the model to be tested with allseals, fluids, and lubricants in place. At least one sample ofeach size bicycle is require
12、d. If multiple samples of the samesize are measured, the average is to be reported.8. Calibration and Standardization8.1 Test equipment is to be in compliance with Practices E4and other requirements specific to the equipment.9. Conditioning9.1 Bicycle weight testing does not require conditioning.1Th
13、is test method is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.10 onBicycles.Current edition approved Sept. 1, 2011. Published November 2011. DOI:10.1520/F2918-11.2For referenced ASTM standards, visit the ASTM web
14、site, 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United Sta
15、tes.10. Procedure10.1 Minimum Bicycle WeightWeigh bicycle, withoutpedals on the calibrated scale. Record the weight to the nearest10 g.10.1.1 Take a digital photo of the bicycle as tested.10.2 As-Sold Bicycle WeightWeigh bicycle, completewith all accessories minus packaging, as sold, on a calibrated
16、scale. Record the weight to the nearest 10 g.10.2.1 Take a digital photo of the bicycle as tested.10.3 Record the serial number of the bicycle tested.11. Report11.1 Report the following information (see Fig. 1):11.1.1 Name of the bicycle manufacturer,11.1.2 Model, size, and serial number of bicycle
17、tested,11.1.3 Date and location of the tests,11.1.4 Name(s) of the personnel conducting the tests,11.1.5 Whether the bicycle is a production model or aprototype, or pre-production model,11.1.6 Minimum bicycle weight to nearest 10 g,11.1.6.1 Digital photo of bike as tested to minimum weight,11.1.7 As
18、-sold bicycle weight to nearest 10 g,11.1.7.1 Digital photo of bicycle tested for as-sold weight,11.1.8 A comprehensive list of all items included in theas-sold bicycle weight, that are not included in the minimumweight,11.1.9 Any deviations from this test method.12. Precision and Bias12.1 The preci
19、sion of this test method is within 1 %, thespecified scale tolerance. The bias of this test method formeasuring bicycle weight has not been determined.13. Keywords13.1 as-sold; bicycle; minimum; weightF2918 112FIG. 1 Bicycle Weight ReportF2918 113APPENDIX(Nonmandatory Information)X1. RATIONALEX1.1 W
20、hy pedals are not included in the minimum bicycleweight.X1.1.1 Pedals have become an aftermarket accessory thatmost users of mid to high quality bicycles upgrade to theirunique preference. Some bicycle manufacturers, are aware ofthis and choose to supply bicycles without pedals. So to makeweight com
21、parisons more equal among all bicycles, it waschosen to not include pedals in the minimum weightmeasurements.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised
22、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 technical committee and must be reviewed every five years andif not revised, either reap
23、proved 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 consideration at a meeting of theresponsible technical committee, which you may attend. If you
24、 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 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual
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