ASTM_D_4151_-_10.pdf

Designation:D415110Standard Test Method forFlammability of Blankets1This standard is issued under the fixed designation D4151;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 provides a means to identify blanketfabrics which ignite easily and propagate flame across thesurface.1.2 This test method specifies the procedures described inthe“Voluntary Blanket Flammability Standard”which hasbeen used by the blanket industry in the United States since1972.1.3 This standard is used to measure and describe theresponse of materials,products,or assemblies to heat andflame under controlled conditions,but does not by itselfincorporate all factors required for fire hazard or fire riskassessment of the materials,products or assemblies underactual fire conditions.NOTE1This test method is not identical to 16 CFR Part 1610,Flammability of Clothing Textiles.Consumer Product Safety Commissionregulations require that fabrics introduced into commerce meet therequirements of 16 CFR Part 1610.1.4 Fire testing is inherently hazardous.Adequate safe-guards for personnel and property shall be employed inconducting these tests.1.5 This standard does not purport to address all of thesafety problems,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ASTM Standards:2D123 Terminology Relating to TextilesD1230 Test Method for Flammability of Apparel Textiles(Withdrawn 2010)3D1776 Practice for Conditioning and Testing TextilesD3411 Test Method for Flammability of Textile Materials(Withdrawn 1981)32.2 Federal Specification:NNN-P-40b43.Terminology3.1 Definitions:3.1.1 blanket,nfor bedding,an unquilted fabric coveringdesigned primarily to provide thermal insulation.3.1.1.1 DiscussionBlankets may be made by any textileprocess from various types of fibers and may or may not havea raised fiber surface.Construction may be woven,knitted,flocked,or nonwoven.3.1.1.2 DiscussionElectric blankets include resistanceheating wires and can provide heat as well as thermal insula-tion.3.1.2 flammability,nthose characteristics of a materialthat pertain to its relative ease of ignition and relative ability tosustain combustion.NOTE2In this test,evidence of ignition is shown by discoloration,charring,or burning of the paper monitor.3.1.3 ignition,ninitiation of combustion.3.2 For definitions of other textile terms used in this testmethod,refer to Terminology D123.4.Summary of Test Method4.1 Specimens cut from the blanket fabric are prepared bybrushing if they have a raised fiber surface and by drying.Thedried specimen is held in a special apparatus,a standardizedflame is applied to the surface for a specified time undercontrolled conditions,and burning,charring,or discolorationof a paper monitor is noted.Two classes of flammability aredescribed.4.1.1 A burn of sufficient intensity to discolor a papermonitor in specified contact with the surface of the testspecimen indicates ignition of the blanket surface(see 11.4.1).5.Significance and Use5.1 This test method for the determination of the flamma-bility of blankets is considered satisfactory for acceptance1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.52 on Flammability.Current edition approved June 15,2010.Published August 2010.Originallypublished as D4151 82.Discontinued January 2010 and reinstated as D4151 10.DOI:10.1520/D4151-10.2For 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,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 testing of commercial shipments of blankets since this testmethod has been used extensively in the trade for acceptancetesting.5.2 This test method is used to evaluate electric blanketfabric,but tests should be performed on the fabric itselfwithout the resistance heating wires inserted.5.3 All fabrics made of natural or regenerated cellulose,aswell as many made from other natural or synthetic fibers,arecombustible.Some combustible fabrics when used for blanketsare potentially dangerous to the user because of the ease ofignition,rapidity,and intensity of burning.The first character-istic can be judged with the aid of