ASTM_D_3686_-_20.pdf

Designation:D368620Standard Practice forSampling Atmospheres to Collect Organic CompoundVapors(Activated Charcoal Tube Adsorption Method)1This standard is issued under the fixed designation D3686;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 a method for the sampling ofatmospheres to determine the presence of certain organicvapors by means of adsorption on activated charcoal using acharcoal tube and a small portable sampling pump worn by aworker.A list of some of the organic chemical vapors that canbe sampled by this practice is provided in Annex A1.This listis presented as an information guide and should not beconsidered as absolute or complete.1.2 This practice does not cover any method of samplingthat requires special impregnation of activated charcoal orother adsorption media.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Aspecific safety precaution is given in 9.4.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD3687 Test Method for Analysis of Organic CompoundVapors Collected by the Activated Charcoal Tube Adsorp-tion MethodD4840 Guide for Sample Chain-of-Custody ProceduresD5337 Practice for Flow Rate Adjustment of Personal Sam-pling Pumps2.2 NIOSH Standards:CDC-99-74-45 Documentation of NIOSH Validation Tests3HSM-99-71-31Personal Sampler Pump for CharcoalTubes;Final Report3NIOSH Manual of Analytical Methods42.3 OSHA Standards:29 CFR 1910 U.S.Code of Federal Regulations Relating toLabor,U.S.OccupationalSafetyandHealthAdministration,Department of Labor5OSHA Chemical Sampling Information6OSHA Sampling and Analytical Methods72.4 Other Documents:ISO/IEC 17025 General Requirements for the Competenceof Testing and Calibration Laboratories83.Terminology3.1 DefinitionsFor definitions of terms used in thismethod,refer to Terminology D1356.3.2 Definitions of Terms Specific to This Standard:3.2.1 activated charcoal,ncharcoal that has been heatedor otherwise treated to increase its adsorptive power.3.2.1.1 DiscussionA common procedure is to increase theinherent porosity of charcoal derived from biological precur-sors(for example,nut shells)by steam activation.Prior to use1This practice is under the jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.04 on Workplace Air Quality.Current edition approved March 1,2020.Published June 2020.Originallyapproved in 1978.Last previous edition approved in 2013 as D3686 13.DOI:10.1520/D3686-20.2For 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 National Technical Information Service(NTIS),5285 PortRoyal Rd.,Springfield,VA 22161,http:/www.ntis.gov.4NIOSH Manual of Analytical Methods,http:/www.cdc.gov/niosh/nmam.5Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.6OSHA Chemical Sampling Information,http:/osha.gov/dts/chemicalsampling/toc/toc_chemsamp.html.7OSHA Sampling and Analytical Methods,http:/osha.gov/dts/sltc/methods/toc.html.8Available from International Organization for Standardization(ISO),ISOCentral Secretariat,BIBC II,Chemin de Blandonnet 8,CP 401,1214 Vernier,Geneva,Switzerland,http:/www.iso.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.in this application,activated charcoals may need to be furthertreated to remove remnant organic compounds.4.Summary of Practice4.1 Air samples are collec