ASTM_F_2815_-_10_2014.pdf

Designation:F281510(Reapproved 2014)Standard Practice forChemical Permeation through Protective Clothing Materials:Testing Data Analysis by Use of a Computer Program1This standard is issued under the fixed designation F2815;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 practice covers the calculations of all the perme-ation parameters related to Test Method F739,ISO 6529,andPractice D6978 standards by use of a computer program,referred to as“Permeation Calculator”(DHHS(NIOSH)Pub-lication No.2007 143c).2,31.2 The practice is applicable to both open loop and closedloop permeation tests.The closed loop test includes continuoussampling and discrete sampling.The discrete sampling in-cludes tests when sample volume is replaced and also whensample volume is not replaced.For an open loop permeationtest,the computer program also allows permeation data fileswith variable sampling flow rate.Refer to Test Method F739for more details about the different types of the permeationtesting systems.1.3 This practice is applicable to the most typical perme-ation behavior,that is,Type A,where the permeation ratestabilizes at a“steady-state”value.It does not apply to theother types of permeation behaviors.Refer to Test MethodF739 for more details about the various permeation behaviors.1.4 This practice is not applicable to Test Method F1383because the permeation behavior is different under conditionsof intermittent contact than under conditions of continuouscontact.1.5 This practice does not address the procedure of perme-ation testing.Refer to Test Method F739,ISO 6529,or PracticeD6978 for the procedures in detail if needed.2.Referenced Documents2.1 ASTM Standards:4D6978 Practice for Assessment of Resistance of MedicalGloves to Permeation by Chemotherapy DrugsF739 Test Method for Permeation of Liquids and Gasesthrough Protective Clothing Materials under Conditions ofContinuous ContactF1194 Guide for Documenting the Results of ChemicalPermeation Testing of Materials Used in Protective Cloth-ingF1383 Test Method for Permeation of Liquids and Gasesthrough Protective Clothing Materials under Conditions ofIntermittent ContactF1494 Terminology Relating to Protective Clothing2.2 ISO Standards:5ISO6529 ProtectiveClothingProtectionagainstChemicalsDetermination of Resistance of ProtectiveClothing Materials to Permeation by Liquids and Gases3.Terminology3.1 Definitions:3.1.1 analytical technique,na procedure whereby theconcentration of a challenge chemical in a collection mediumis quantitatively determined.3.1.1.1 DiscussionThe detailed steps for these proceduresare often specific to individual chemical and collection mediumcombinations.Applicable techniques include but are not lim-ited to flame ionization,photo ionization,electro-chemical,andultraviolet and infrared spectrophotometry,gas and liquidchromatography,colorimetry,length-of-stain detector tubes,and radionuclide tagging/detection counting.3.1.2 breakthrough detection time,nthe elapsed time mea-sured from the start of the test to the sampling time thatimmediately precedes the sampling time at which the testchemical is first detected.1This practice is under the jurisdiction of ASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.30 on Chemicals.Current edition approved May 1,2014.Published May 2014.Originallyapproved in 2010.Last previous edition approved in 2010 as F281510.DOI:10.1520/F281510R14.2Gao P,Weise T,and Tomasovic B 2009 Development of a computer programfor permeation testing data analysis.Journal of Occupational&EnvironmentalHygiene,6(6):363-373.3The computer program is available at no-charge either on the National Institutefor Occupational Safety and Health website athttp:/www.cdc.gov/niosh/npptl/PermeationCalculator/permeationcalc.html or onCD by request.Phone:1-800-CDC-INFO(1-800-232-4636),Fax:1-888-232-6348,or E-mail:CDCInfocdc.gov.4For 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.5Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.2.1 DiscussionFor this practice the breakthrough de-tection time is calculated by a computer algorithm and isdependent on the sensitivity of the analytical method.3.1.3 breakthrough point,nthe point at which the break-through occurs during a permeation test.3.1.3.1 DiscussionThe computer program determines thebreakthrough point based on the approach shown in