ASTM_F_1458_-_04_2008.pdf

Designation:F145804(Reapproved 2008)Standard Test Method forMeasurement of Cut Resistance to Chain Saw of FootProtective Devices1This standard is issued under the fixed designation F1458;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 foot protec-tive devices that are designed to protect the foot whenoperating a chain saw.1.2 This test method may be used to test for compliance tominimum performance requirements in established safety stan-dards.1.2.1 By agreement between the purchaser and the supplier,or as required by established safety standards,this test methodcan be used to determine any one or both of the following:(1)chainspeed 50(CS50),(2)success/failure(jamming/chainstop)at specified chain speed.1.3 This test method may be used to determine levels ofprotection for areas of coverage as stipulated in establishedsafety standards.1.4 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.1.5 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:2D123 Terminology Relating to TextilesD1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberD1776 Practice for Conditioning and Testing TextilesF1414 Test Method for Measurement of Cut Resistance toChain Saw in Lower Body(Legs)Protective ClothingF1494 Terminology Relating to Protective Clothing2.2 AATCC Test Methods:3AATCC 96 Dimensional Changes in Laundering of Wovenand Knitted Fabrics,Except Wool(1988)AATCC 158 Dimensional Changes on Drycleaning in Per-chloroethylene:Machine Method2.3 Military Standards:4MIL-STD-105 Sampling Procedure and Tables for Inspec-tion by AttributesMIL-C-12369 Cloth,Ballistic,Nylon2.4 Federal Standard:5FS 5100-86 Type II,Cloth,Duck,Nylon,PolyurethaneCoated3.Terminology3.1 Definitions:3.1.1 centerline,nin foot protective devices,a line thatextends from the toe of the footwear horizontally along the soleto the heel vertically to the top of the footwear,and diagonallyto the point of intersection at the toe.3.1.2 chain saw,na portable power-operated tool that hascutters linked in a chain used for cutting wood.3.1.3 chain speed,nthe velocity of synchronized move-ment of linked cutters around a bar and sprocket.3.1.4 chainspeed 50(CS50),nfor chain saw protection,the mean velocity at which cut through occurs.3.1.4.1 DiscussionThis value establishes the relationshipbetween the probability of cutting through the chain saw legprotective clothing(or foot protective device)and the speed ofthe saw chain.For lower chain speeds,the probability of cut1This 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 June 15,2008.Published July 2008.Originallyapproved in 1998.Last previous edition approved in 2004 as F1458-04.DOI:10.1520/F1458-04R08.2For 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.3Available from American Association of Textile Chemists and Colorists(AATCC),P.O.Box 12215,Research Triangle Park,NC 27709,http:/www.aatcc.org.4Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/www.dodssp.daps.mil.5Available from Superintendent of Documents,U.S.Government PrintingOffice,Washington,DC 20402.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 through approaches zero,while for higher chain speeds,theprobability of cut through approaches one.3.1.5 chain stop,nfor chain saw cut resistance,theresulting action when a material clogs(jams)the drive sprocketor slows the speed sufficiently to prevent advancement of thesaw chain.3.1.6 cut resistance,nthe ability of a material,while incontact with the linked cutters,to resist cut through of thecutters of a moving saw chain,independent of either jammingor chain stop.3.1.7 foot,nthe terminal part of the vertebrate leg,includ-ing the ankle,upon which an individual stands.3.1.8 foot protective device,n for chain saw cutresistance,an article of personal equipment which covers thefoot and ankle for the purpose of providing lim