ASTM_F_2913_-_11.pdf

Designation:F291311Standard Test Method forMeasuring the Coefficient of Friction for Evaluation of SlipPerformance of Footwear and Test Surfaces/Flooring Usinga Whole Shoe Tester1This standard is issued under the fixed designation F2913;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 the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method2determines the dynamic coefficient offriction between footwear and floorings under reproduciblelaboratory conditions for evaluating relative slip performance.The method is applicable to all types of footwear,outsole units,heel top-pieces(top-lifts)and sheet soling materials,also tomost types of indoor floorings,including matting and stairnosing,and surface contaminants on the flooring surface,including but not limited to liquid water,ice,oil and grease.The method may also be applied to surfaces such as blockpavers,turf and gravel.1.2 Special purpose footwear or fittings containing spikes,metal studs or similar may be tested on appropriate surfaces butthe method does not fully take account of the risk of trippingdue to footwear/ground interlock.1.3 The values stated in the ASTM test method in metricsare to be regarded as the standard.The values in parenthesesare for information.1.4 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 limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3F1646 Terminology Relating to Safety and Traction forFootwear2.2 Other References:BS EN ISO 4287 Geometrical product specification(GPS).Surface texture:Profile method.Terms,definitions andsurface texture parameters4EN 10088-2 Stainless steels-Part 2:Technical deliveryconditions for sheet/plate and strip of corrosion resistingsteels for general purposes53.Terminology3.1 For general definitions of terms,refer to the Terminol-ogy F1646.3.2 Definitions:3.2.1 slidera 76 6 1 mm circular test specimen cut fromsheet material.3.2.1.1 DiscussionShould a shape and or size of sliderother than a 76 mm circular shape be used,it shall bedocumented within the test report(see 14.1.2.1).3.2.2 slider 96a pre-described rectangular test specimenintended for use in calibration of the test surface(see 10.6.1).4.Summary of Test Method4.1 The footwear item and underfoot surface are broughtinto contact,subjected to a specified vertical force for a shortperiod of static contact then moved horizontally relative to oneanother at a constant speed.The horizontal frictional force ismeasured at a given time after movement starts and thedynamic coefficient of friction is calculated for the particularconditions of the test.5.Significance and Use5.1 This non-proprietary laboratory test method allows pre-liminarily for the reproducible testing of whole footwear andfootwear-related soling materials for evaluating relative slipperformance.Other ASTM test methods generally employ astandardized test foot primarily for evaluation of flooringmaterials.1This test method is under the jurisdiction of ASTM Committee F13 onPedestrian/Walkway Safety and Footwear and is the direct responsibility ofSubcommittee F13.30 on Footwear.Current edition approved Nov.1,2011.Published December 2011.DOI:10.1520/F2913-11.2This standard is derived from SATRA TM144,Friction Slip Resistance ofFootwear and Floorings,copyright SATRA Technology Centre,KetteringNorthamptonshire,NN16 8SD,United Kingdom.3For 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.4Available from British Standards Institution(BSI),389 Chiswick High Rd.,London W4 4AL,U.K.,http:/.5Available from European Committee for Standardization(CEN),AvenueMarnix 17,B-1000,Brussels,Belgium,http:/www.cen.eu.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Apparatus6.1 Slip tester capable of performing the required test.6,76.2 Ameans of conditioning the test specimens and standardreference materials,prior to the test,against which the speci-mens are to be tested,at 23 6 2C and 50 6 5%RH relativehumidity and carrying out the test at 23 6 2C.6.3 A means of securely mounting the footwear,outsoles orslider.6.4 A flat rigid horizontal surface mount of minimum width150 mm and minimum length 450 mm,to which the testunderfoot surface,hereafter termed the test surface,shall besecurely mounted.NOTE1A device may be used to entrap lubricant within thefootwear/surface contact area to ensure that the required depth of lubricantis maintained.6.5 Ameans of h