ASTM_F_3324_-_19.pdf

Designation:F332419Standard Test Method forMeasurement of Cut Resistance to Chainsaw in Leg-Protective Devices1This standard is issued under the fixed designation F3324;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 method measures cut resistance of garmentsand devices worn to protect the lower body(legs)whenoperating a chainsaw.21.2 This test method may be used to test for compliance tominimum performance requirements in established safety stan-dards.1.3 The values stated in SI units are to be regarded asstandard.NOTE1The values stated in each system may not be exact equiva-lents;therefore,each system must be used independently of the other,without combining values in any way.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D123 Terminology Relating to TextilesD1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberD1776/D1776M Practice for Conditioning and Testing Tex-tilesF1494 Terminology Relating to Protective Clothing2.2 Military Standard:4MIL-STD-105 Sampling Procedures and Tables for Inspec-tion by Attributes2.3 Federal Standard:4FS 5100-86 Type II,Cloth,Duck,Nylon,PolyurethaneCoated3.Terminology3.1 Definitions:3.1.1 chainsaw,na portable,power-operated tool used forcutting wood that has cutters linked in a chain.3.1.2 chain speed,nthe speed of synchronized movementof linked cutters around a guide bar and sprocket.3.1.3 chain stop,nthe resulting action when a materialclogs(jams)the drive sprocket or slows the speed sufficientlyto prevent advancement of the saw chain.3.1.4 cut resistance,nin chainsaw testing,the ability of amaterial,while in contact with the linked cutters,to resistcut-through of the cutters of a moving saw chain independentof either jamming or chain stop.3.1.5 cut-through,nfor chainsaw cut resistance,the actionof a running chainsaw after complete breakthrough of either aprotective garment or protective device.3.1.5.1 DiscussionWhen a cut-through(0.64 cm)iseffected,speed of the saw chain must be measured.3.1.6 jamming,nfor chainsaw cut resistance,the cloggingaction manifested by a protective garment or a device that canproduce a chain stop.3.1.7 lower body,nthat part of the human body whichincludes all portions between the waist and feet,not to includethe feet.3.1.8 protective clothing,nan item of clothing that isspecifically designed and constructed for the intended purposeof isolating all or part of the body from a potential hazard,orisolating the external environment from contamination by theclothing.1This test method is under the jurisdiction ofASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.20 on Physical.Current edition approved Feb.1,2019.Published March 2019.Originallyapproved in 2018.Last previous edition approved in 2018 as F3324 18.DOI:10.1520/F3324-19.2This standard was developed as a replacement for the archived CAN/BNQ1923-450.3For 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 DLA Document Services,Building 4/D,700 Robbins Ave.,Philadelphia,PA 19111-5094,http:/quicksearch.dla.mil.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.1.8.1 DiscussionFor chainsaw cut-resistant protectiveclothing,the potential hazard is exposure to a running powersaw chain.3.1.9 saw chain,na closed loop of cutters linked togetherfor use in a portable,power-operated tool.3.1.10 threshold stopping speed,nchain speed that resultsin a14-in.cut in the bottom layer of the protective pad liner ina chainsaw leg-protective device.3.1.10.1 DiscussionThis value establishes the relationshipbetween