1、Designation:F739121Standard Test Method forPermeation of Liquids and Gases through ProtectiveClothing Materials under Conditions of Continuous Contact1This standard is issued under the fixed designation F739;the number immediately following the designation indicates the year of originaladoption or,i
2、n the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.1NOTEEditorially corrected 8.8.1 in February 2015.INTRODUCTIONWorkers involved in the production,use,
3、and transportation of liquid and gaseous chemicals can beexposed to numerous compounds capable of causing harm upon contact with the human body.Thedeleterious effects of these chemicals can range from acute trauma such as skin irritation and burn,tochronic degenerative disease such as cancer.Since e
4、ngineering controls may not eliminate all possibleexposures,attention is often placed on reducing the potential for direct skin contact through the useof protective clothing that resists permeation,penetration,and degradation.This test method is used to measure the permeation of liquids and gases th
5、rough protective clothingmaterials under the conditions of continuous contact of the clothing material by the test chemical.Resistance to permeation under the condition of intermittent contact with the test chemical should bedetermined by Test Method F1383.In certain situations,the permeation of liq
6、uids through protectiveclothing materials can be measured using a permeation cup following Test Method F1407.Penetrationof liquids should be determined by Test Method F903.An undesirable change in the physicalproperties of protective clothing materials is called degradation.Procedures for measuring
7、thedegradation of rubbers,plastics,and coated fabrics are found in Test Method D471,Test MethodD543,and Test Method D751,respectively.A starting point for selecting the chemicals to be used inassessing the chemical resistance of clothing materials is Guide F1001.1.Scope1.1 This test method measures
8、the permeation of liquids andgases through protective clothing materials under the conditionof continuous contact.1.2 This test method is designed for use when the testchemical is a gas or a liquid,where the liquid is either volatile(that is,having a vapor pressure greater than 1 mm Hg at 25C)or sol
9、uble in water or another liquid that does not interact withthe clothing material.1.3 Values states in SI units are to be regarded as standard.Values given in parentheses are not exact equivalents and aregiven for information only.1.4 This standard does not purport to address all of thesafety concern
10、s,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.Specific precau-tionary statements are given in Section 7.2.Referenced Documents2.1 ASTM
11、 Standards:2D471 Test Method for Rubber PropertyEffect of LiquidsD543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD751 Test Methods for Coated FabricsD1777 Test Method for Thickness of Textile MaterialsE105 Practice for Probability Sampling of MaterialsE171 Practice for Co
12、nditioning and Testing Flexible BarrierPackagingE177 Practice for Use of the Terms Precision and Bias inASTM Test Methods1This test method is under the jurisdiction ofASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.30 on Chemicals.C
13、urrent edition approved Sept.1,2012.Published October 2012.Originallyapproved in 1981.Last previous edition approved in 2007 as F739 07.DOI:10.1520/F0739-12E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of AST
14、MStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method
15、F903 Test Method for Resistance of Materials Used inProtective Clothing to Penetration by LiquidsF1001 Guide for Selection of Chemicals to Evaluate Protec-tive Clothing MaterialsF1194 Guide for Documenting the Results of ChemicalPermeation Testing of Materials Used in Protective Cloth-ingF1383 Test
16、Method for Permeation of Liquids and Gasesthrough Protective Clothing Materials under Conditions ofIntermittent ContactF1407 Test Method for Resistance of Chemical ProtectiveClothing Materials to Liquid PermeationPermeationCup MethodF1494 Terminology Relating to Protective ClothingF2815 Practice for Chemical Permeation through ProtectiveClothing Materials:Testing Data Analysis by Use of aComputer Program2.2 ISO Standard:ISO 6529Protective ClothingDetermination of Resis-tance of Protective Clothi
