1、Designation:F250813An American National StandardStandard Practice forValidation,Calibration,and Certification of WalkwayTribometers Using Reference Surfaces1This standard is issued under the fixed designation F2508;the number immediately following the designation indicates the year oforiginal adopti
2、on 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.1.Scope1.1 This practice is intended to establish the procedures forvalidation,calibration,a
3、nd certification of walkway tribom-eters.1.2 This practice provides a walkway tribometer supplierwith a procedure and suite of reference surfaces to validate hiswalkway tribometer by properly ranking and differentiating thesurfaces.1.3 This practice provides the user of a walkway tribometerwith a pr
4、ocedure and suite of reference surfaces to testcalibration of his instrument.1.4 This practice provides a procedure through which anentity may certify a walkway tribometer model,signifying thatthe walkway tribometer model has a completed and docu-mented validation and interlaboratory study.1.5 This
5、practice describes the necessary materials,specifications,and the cleaning process for reference materials,as well as the requirements for the validation of a supplierswalkway tribometer and calibration of a users walkwaytribometer.1.6 This practice applies to walkway tribometers withoutreference to
6、 the nature of the scale of the readings produced bythem.The scale used in the reports of validation and calibrationmust be the same,and are to be those of the instrument ordefined for the instrument.1.7 The values stated in SI units are to be regarded asstandard.The values given in parentheses are
7、for informationonly and are not considered standard.1.8 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 re
8、gulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1349 Practice for RubberStandard Temperatures forTestingD3244 Practice for Utilization of Test Data to DetermineConformance with SpecificationsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision
9、of a Test MethodF1646 Terminology Relating to Safety and Traction forFootwear3.Terminology3.1 For terms used in this practice not identified herein,referto Terminology F1646.3.2 Definitions:3.2.1 paired t-test,na test of statistical significance basedon the use of students t-distribution and used to
10、 compare twosample means(see Appendix X2).3.2.2 supplier,nanyindividual,agent,company,manufacturer,or organization responsible for the walkwaytribometer prior to receipt by the user.D32443.2.3 test foot,nshoe bottom material or surrogatemounted on the walkway tribometer that comes into contactwith t
11、he surface being tested.3.2.4 walkway tribometer,nany apparatus used to mea-sure the frictional forces acting at an interface between awalkway surface and shoe material.3.2.4.1 DiscussionA judgement of the adequacy of thesefrictional forces acting on a walkway surface/shoe surfaceinterface is the ba
12、sis for an assessment of slip propertiesrelative to human locomotion.3.3 Definitions of Terms Specific to This Standard:3.3.1 calibration,nthe set of operations that establishes,under specified conditions,the relationship between the valuesobtained by a walkway tribometer and the correspondingsuppli
13、er reference values.1This practice is under the jurisdiction of ASTM Committee F13 on Pedestrian/Walkway Safety and Footwear and is the direct responsibility of SubcommitteeF13.10 on Traction.Current edition approved April 1,2013.Published April 2013.Originallyapproved in 2011.Last previous edition
14、approved in 2012 as F2508 12a.DOI:10.1520/F2508-13.2For 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.Copyright ASTM
15、International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.3.2 certification test method,na specific test method thatis used for all walkway tribometer operational tasks in thispractice performed as part of a certification.3.3.3 laboratory,na combination of one
16、individual,uniquely identifiable walkway tribometer,one individual,uniquely identifiable test foot,and one operator,none of which(or whom)may be reused for the same purpose in theinterlaboratory study being conducted.3.3.4 reference surfaces(RSs),nspecified materials,iden-tified in Section 7,that have an experimentally demonstratedslip properties for a select population of pedestrians and serveas references for walkway tribometer measurements.3.3.5 validation,nthe set of operations that establis
