1、Designation:D630610Standard Guide forPlacement and Use of Diffusion Controlled Passive Monitorsfor Gaseous Pollutants in Indoor Air1This standard is issued under the fixed designation D6306;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revi
2、sion,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 guide covers the placement and use of diffusioncontrolled monitors in the indoor atmosphere.1.2 Diffu
3、sion controlled passive monitors within this guideinclude both area and personal monitors for use in residences,public buildings,offices,and other non-industrial workplacesand dwelling environments.A passive monitor is any airmonitor that does not utilize electrical or mechanical power inorder to su
4、pply air to the sorbent media or chemical reactantwithin the monitor and sample according to Ficks first law ofdiffusion.1.3 The purpose of this guide is to ensure uniformity ofsampling within a variety of indoor environments and tofacilitate comparison of results.1.4 The values stated in SI units a
5、re to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 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 an
6、d determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD1357 Practice for Planning the Sampling of the AmbientAtmosphereD4597 Practice for Sampling Workplace Atmospheres toCollec
7、t Gases or Vapors with Solid Sorbent DiffusiveSamplersD3614 Guide for Laboratories Engaged in Sampling andAnalysis of Atmospheres and Emissions3.Terminology3.1 DefinitionsFor definitions of terms used in this guiderefer to Terminology D1356.3.2 Definitions of Terms Specific to This Standard:3.2.1 pa
8、ssive monitora diffusion controlled air monitorthat does not utilize electrical or mechanical power in order tosupply air to the sorbent media or chemical reactant within themonitor.These monitors may be worn by an individual(personal passive monitor)or used as sampling devices withinspecific locati
9、ons(area passive monitor).4.Summary of Guide4.1 Contaminants in air are sampled by collection with asorbent or chemically reactive medium in order to undergosubsequent analysis for determination of concentration.Con-taminants in air are transported to the sorption medium orreacting chemical through
10、vapor or gas diffusion.During thesampling process,the compounds,in a molecular state,diffusefrom the environment adjacent to the sampler through a firstregion of defined geometric structure and into a secondadsorbing region containing the sorbent.4.2 Guidance is provided for the placement,handling,a
11、nduse of passive air monitors within an indoor environment.5.Significance and Use5.1 The objective of this guide is to provide guidance for theplacement and use of passive monitors that when uniformlyapplied enables the user to eliminate many interferences in thesampling of indoor air.Since the anal
12、ysis of the indoorenvironment by passive air monitors is influenced by manyfactors other than the method of sampling,efforts are made tominimize interfering factors and maintain the air at conditionstypical of the measurement location within the vicinity of thepassive air monitor.However,when perfor
13、ming diagnostic orspecial measurements,non-typical indoor air environmentconditions may be desirable or required.Thus,the objectives ofa sampling study may determine the conditions needed forsampling.1This method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direct respons
14、ibility of Subcommittee D22.05 on Indoor Air.Current edition approved April 1,2010.Published April 2010.Originallyapproved in 1998.Last previous edition approved in 2003 as D6306-98(2003).DOI:10.1520/D6306-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer
15、Service at serviceastm.org.For Annual Book of ASTMStandards 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 5.2 Passive sampling provides for time integrat
16、ed measure-ments.Passive monitors are usually placed in an indoorenvironment over a time period to obtain a cumulative sample;hence,interfering factors should be anticipated and eliminatedwhere possible.Passive monitors often lack the sensitivity tomeasure short-term peak concentrations.5.3 With suitable instruction regarding placement of passivemonitors,placement and retrieval of the monitors can beperformed by unskilled personnel(for example,occupants).6.General Principles6.1 The choice of a p
