ASTM_D_6333_-_10.pdf

Designation:D633310Standard Practice forCollection of Dislodgeable Pesticide Residues from Floors1This standard is issued under the fixed designation D6333;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 procedure for collection ofdislodgeable pesticide residues from indoor floor surfaces.1.2 This practice and the sampling methodology describedare applicable to bare floors or covered floor surfaces,forexample,carpeting and vinyl flooring.1.3 This practice and the sampling methodology describedare applicable to all pesticides listed in Practice D4861 whetherapplied directly to the floor surface or transported there bymigration within the room or tracked in from outdoors.1.4 Floor surfaces for which this practice has been success-fully applied include nylon plush carpeting,polypropylenelevel-loop carpeting,and vinyl flooring.1.5 Sample analysis will be dependent upon the nature ofthe pesticides targeted and is beyond the scope of this practice;however,the analytical procedures discussed in PracticeD4861 are applicable to this practice.1.6 The values stated in SI units are to be regarded as thestandard.No other units of measurement are included in thisstandard.1.7 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 its use.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterD1356 Terminology Relating to Sampling and Analysis ofAtmospheresD4861 Practice for Sampling and Selection of AnalyticalTechniques for Pesticides and Polychlorinated Biphenylsin AirE1 Specification for ASTM Liquid-in-Glass ThermometersE337 Test Method for Measuring Humidity with a Psy-chrometer(the Measurement of Wet-and Dry-Bulb Tem-peratures)3.Terminology3.1 Definitions:For definitions of terms used in thispractice,refer to Terminology D1356.3.1.1 dislodgeable residuethat part of the residue of achemical deposited on a solid surface that may be transferredby direct contact to human skin or clothing(sometimes calledtransferable residue).3.1.2 sampling traversethe distance from the startingpoint to the end point over which the sampling media contactsthe floor surface for collection of a single sample.3.1.3 transfer coeffcientthe ratio of the amount of pesti-cide residue collected by the sampling media to the area of thesurface contacted by the media during a single samplingtraverse.3.1.4 transfer effciencythe ratio of the transfer coefficientto the pesticide surface loading determined by analysis ofdeposition coupons placed strategically on the test surfacebefore the pesticide application.4.Summary of Practice4.1 The sampling method described in this practice is takenfrom published work(1,2,3,4).34.2 Dislodgeable pesticide residues from floor surfaces arecollected by transfer to an annular ring of polyurethane foam(PUF),which is rolled across the floor at a constant speed andapplied pressure.4.3 The PUF sampling ring is slipped over a cylindricalmetal axle that functions as the front wheel of the PUF rollerapparatus.The apparatus is typically constructed of aluminumand consists of a frame with two permanent rear wheels and thedetachable axle cylinder on the front.1This practice is under the jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.05 on Indoor Air.Current edition approved May 1,2010.Published June 2010.Originallyapproved in 1998.Last previous edition approved in 2004 as D6333 98(2004)1.DOI:10.1520/D6333-10.2For 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.3The boldface numbers in parentheses refer to the list of references at the end ofthis standard.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.4 Weights are attached to the roller frame to apply thedesired downward force on the PUF roller ring(samplingpressure).A total weight of 3.88 kg provides a samplingpressure of 8300 Pa,corresponding approximately to that of a9 kg child crawling or walking.4.5 A handle is connected at the rear of the roller frame topush or pull the device across the floor surface.4.6 A template or similar measuring device is used toidentify the area to be sampled.The axle cylinder is fitted witha clean PUF ring,and the roller is then pushed at a constant rateof approximately 10 cm/s over a distance of 1.0 m and thenimmediately pulled in the revers