ASTM_F_1891_-_12.pdf

Designation:F189112Standard Specification forArc and Flame Resistant Rainwear1This standard is issued under the fixed designation F1891;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 specification establishes applicable test methods,minimum physical and thermal performance criteria,a sug-gested sizing guide,and suggested purchasing information forrainwear for use by workers who may be exposed to thermalhazards of momentary electric arcs and open flames.1.1.1 This specification does not apply to the electricalcontact hazards or electric shock hazards involved with electricarcs.1.1.2 This specification does not apply to flash fire hazardssuch as industrial hydrocarbon flash fires or other petrochemi-cal flash fire hazards.1.2 The objective of this specification is to prescribe fit,function and performance criteria for rainwear that meets aminimum level of thermal and physical performance whenexposed to a laboratorysimulated electric arc or flame expo-sure.1.3 This specification is not intended to serve as a detailedmanufacturing or purchasing specification,but can be refer-enced in purchase contracts to ensure that minimum perfor-mance requirements are met.1.4 Controlled laboratory tests used to determine compli-ance with the performance requirements of this specificationshall not be deemed as establishing performance levels for allsituations to which wearers of this protective clothing may beexposed.1.5 The in-service care and use of this rainwear is beyondthe scope of this specification.1.6 The values stated in inch-pound units are to be regardedas the standard.The SI units shown in parentheses are forinformation only.1.7 The following safety hazards caveat pertains only toSections 7 and 9,of this specification:This standard does notpurport to address all of the safety concerns,if any,associatedwith its use.It is the responsibility of the user of this standardto establish appropriate safety and health practices anddetermine the applicability of regulatory limitations prior touse.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD751 Test Methods for Coated FabricsD1117 Guide for Evaluating Nonwoven Fabrics(Withdrawn2009)3D1388 Test Method for Stiffness of FabricsD3393 Specification for Coated FabricsWaterproofnessD3776 Test Methods for Mass Per Unit Area(Weight)ofFabricD4391 Terminology Relating to The Burning Behavior ofTextilesD6413 Test Method for Flame Resistance of Textiles(Ver-tical Test)F1494 Terminology Relating to Protective ClothingF1958/F1958M Test Method for Determining the Ignitabil-ity of Non-flame-Resistant Materials for Clothing byElectric Arc Exposure Method Using MannequinsF1959/F1959M Test Method for Determining theArc Ratingof Materials for Clothing2.2 Federal Specifications:4Federal Test Method Standard(FTMS)No.191A Method5516Federal Test Method Standard(FTMS)No.CCC-T-191bMethod 52042.3 AATCC Standards:AATCC Test Method 135 Dimensional Changes AutomaticHome Laundering of Woven and Knitted Fabrics51This specification is under the jurisdiction of ASTM Committee F18 onElectrical Protective Equipment for Workers and is the direct responsibility ofSubcommittee F18.65 on Wearing Apparel.Current edition approved May 1,2012.Published May 2012.Originallyapproved in 1998.Last previous edition approved in 2006 as F189106.DOI:10.1520/F1891-12.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from Standardization Documents Order Desk,Bldg.4,Section D,700 Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.5AATCC Technical Manual,available from American Association of TextileChemists and Colorists,One Davis Dr.,PO Box 12215,Research Triangle Park,NC277092215.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1 Definitions:3.1.1 afterflame,npersistent flaming of a material after theignition source has been removed.3.1.1.1 DiscussionIn arc testing,a visible flaming on ornear a test specimen which persists after the arc exposure hasended.The afterflame ceases when flaming is no longer visible.3.1.2 afterflame time,nthe length of time for which amaterial continues to flame after the ignition source has beenremoved.3.1.2.1 DiscussionIn arc testing,the length of time forwhich a specimen continues to exhibit a visible flaming asdetermined by a time display video recording of the specimenduring arc testing.3.1.3 arc rating,nvalue attributed to materials that de-scribes their pe