1、Designation:F270108Standard Test Method forEvaluating Heat Transfer through Materials for ProtectiveClothing Upon Contact with a Hot Liquid Splash1This standard is issued under the fixed designation F2701;the number immediately following the designation indicates the year oforiginal adoption or,in t
2、he 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.INTRODUCTIONThis test method is for materials used to protect workers in the event of a hot liquid spl
3、ash incident.The intent of this test method is to test materials or assemblies of materials that will prevent hot liquidfrom penetrating through the materials to avoid direct contact of the hot liquid with the heat sensorsused to simulate human tissue response.The test method determines whether ther
4、e is sufficient heattransmitted through the material or assemblies of materials to cause a second degree burn injury duringa controlled splash of hot liquid at a specified temperature.The test method utilizes similar equipmentand a similar test set-up to that of Test Method F955 for Molten Substance
5、s,but the temperatures ofthe hot liquid hazards are limited to a much lower level than the molten substances tested inaccordance with Test Method F955.The specimens of this test method are expected to remainimpermeable to the hot liquids during the test exposure.1.Scope1.1 This test method is used t
6、o measure the heat energytransmission through materials used in protective clothing andgloves that are exposed to a Hot Liquid Splash.This testmethod is applicable to woven fabrics,knit fabrics,battings,and sheet structures with permeable or impermeable coatingsor laminations intended for use as clo
7、thing or gloves forprotection against brief exposures to hot liquid splash hazards.1.2 This test method is used to measure and describe theproperties of materials or assemblies of materials in response tohot liquids under controlled laboratory conditions.1.3 This test method is applicable to materia
8、ls from whichfinished protective apparel articles are made.1.4 This test method is limited to the hot liquid temperaturesthat are 40C(72F)below the flash point of the specific hotliquid used for testing.NOTE1Specific thermally stable silicone liquids are available withflash points in the range of 31
9、5C(599F).When these thermally stablesilicone liquids are used,a maximum hot liquid temperature of 260C(500F)is achievable.The intent of specifying the maximum temperatureat 40C(72F)below the liquid flash point is to reduce the hot liquid firehazard which increases significantly at temperatures equal
10、 to or above theflash point of the liquid.1.5 This test method does not measure the flammability ofmaterials,nor is it intended for use in evaluating materialsexposed to any other thermal exposure other than hot liquidexposures.1.6 The values as stated in SI units are to be regarded as thestandard.T
11、he values in parentheses are given for informationonly.1.7 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
12、 regulatory limitations prior to use.Specific hazardstatements are given in Section 8.2.Referenced Documents2.1 ASTM Standards:2D93 Test Methods for Flash Point by Pensky-MartensClosed Cup TesterD123 Terminology Relating to TextilesE457 Test Method for Measuring Heat-Transfer Rate Usinga Thermal Cap
13、acitance(Slug)CalorimeterF955 Test Method for Evaluating Heat Transfer throughMaterials for Protective Clothing Upon Contact withMolten Substances1This test method is under the jurisdiction ofASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of Subcommi
14、tteeF23.80 on Flame and Thermal.Current edition approved April 15,2008.Published May 2008.DOI:10.1520/F2701-08.2For 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 standa
15、rds Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 F1494 Terminology Relating to Protective Clothing3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 break-opena material respo
16、nse evidenced by theformation of one or more holes in the material which mayallow thermal energy to pass through the material.3.1.1.1 DiscussionIn hot liquid testing of thermal protec-tive materials,a hole in one or more layers of the materialallows hot liquid to pass through the material and consequentlyallows thermal energy to pass through the material.3.1.2 charringthe formation of carbonaceous residue asthe result of pyrolysis or incomplete combustion.3.1.3 drippinga material response eviden
