ASTM_F_1407_-_12.pdf

Designation:F140712Standard Test Method forResistance of Chemical Protective Clothing Materials toLiquid PermeationPermeation Cup Method1This standard is issued under the fixed designation F1407;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.INTRODUCTIONWorkers involved in the production,use,and transportation of chemicals can be exposed tonumerous compounds capable of causing harm upon contact with the human body.The deleteriouseffects of these chemicals can range from acute trauma,such as dermatitis or burns,to chronicdegenerative disease,such as cancer or pulmonary fibrosis.Since engineering controls may noteliminate all possible exposures,attention is often given to reducing the potential for direct skincontact through the use of protective clothing that resists degradation,penetration,and permeation.This test method provides a simple,gravimetric means for measuring the resistance of clothingmaterials to permeation by liquid chemicals.Permeation testing by a more sophisticated procedure andpenetration testing are addressed by separate methods:Test Methods F739 and F903,respectively.TestMethods for measuring the effects of chemicals on the physical properties of rubbers,plastics,andcoated fabrics may be found in Test Method D471,Test Method D543,and Test Methods D751,respectively.Guide F1001 designates 21 chemicals for use with these tests.1.Scope1.1 This test method measures the barrier effectiveness of aspecimen of protective clothing upon continuous contact witha liquid.1.1.1 Procedure AFor use when a value for the cumulativeamount of chemical permeated in 1 h is desired.1.1.2 Procedure BFor use when breakthrough detectiontime and permeation rate values are desired.1.2 Although not addressed herein,the effect of the testchemical on the clothing material can be determined bycomparing the weight or other physical properties of thespecimen before and after the permeation test.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.4 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.Specific precau-tionary statements are given in Section 2.2.Referenced Documents2.1 ASTM Standards:2D471 Test Method for Rubber PropertyEffect of LiquidsD543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD751 Test Methods for Coated FabricsE105 Practice for Probability Sampling of MaterialsF739 Test Method for Permeation of Liquids and Gasesthrough Protective Clothing Materials under Conditions ofContinuous ContactF903 Test Method for Resistance of Materials Used inProtective Clothing to Penetration by LiquidsF1001 Guide for Selection of Chemicals to Evaluate Protec-tive Clothing Materials2.2 Federal Standard:No.191,Method 5030.2 Measurement of the Thickness ofMaterials31This test method is under the jurisdiction ofASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.30 on Chemicals.Current edition approved June 1,2012.Published June 2012.Originallyapproved in 1992.Last previous edition approved in 2011 as F1407-11.DOI:10.1520/F1407-12.2For 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.3Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/dodssp.daps.dla.mil.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1 Definitions:3.1.1 breakthrough detection time,nthe elapsed time mea-sured from the initial exposure to the test chemical to thesampling time that immediately precedes the sampling time atwhich the test chemical is first detected.3.1.1.1 DiscussionIn this method,the sampling time if thetime of weighing.3.1.2 cumulative permeation,nthe total mass of chemicalthat permeates a specific area of the protective clothingmaterial during a specified time from when the material is firstcontacted by the test chemical.3.1.3 degradation,na deleterious change in one or moreproperties of a material.3.1.4 penetration,n for chemical protective clothing,themovement of substances through voids in protective clothingmaterials or item on a non-molecular level.3.1.4.1 DiscussionVoids include gaps,pores,holes,andimp