ASTM D6333-17 Standard Practice for Collection of Dislodgeable Pesticide Residues from Floors.pdf
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1、Designation: D6333 17Standard 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 revisio
2、n. 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
3、 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 trans
4、ported 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 t
5、argeted 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 pu
6、rport 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.1.8 This international standard was deve
7、loped 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 Doc
8、uments2.1 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 ThermometersE3
9、37 Test Method for Measuring Humidity with a Psy-chrometer (the Measurement of Wet- and Dry-Bulb Tem-peratures)3. Terminology3.1 DefinitionsFor 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 s
10、urface 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 coeffc
11、ientthe 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 coupon
12、s placed strategically on the test surfacebefore the pesticide application.1This practice is under the jurisdiction of ASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.05 on Indoor Air.Current edition approved March 1, 2017. Published March 2017. Originallyapprov
13、ed in 1998. Last previous edition approved in 2010 as D6333 10. DOI:10.1520/D6333-17.2For 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
14、page onthe ASTM website.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
15、 theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.155 4. Summary of Practice4.1 The sampling method described in this practice is takenfrom published work (1-4).34.2 Dislodgeable pesticide residue
16、s 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 ap
17、paratus is typically constructed of aluminumand consists of a frame with two permanent rear wheels and thedetachable axle cylinder on the front.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 provide
18、s 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. T
19、he 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 reverse direction back over the samesampling area at the same rate of speed, ending at the originalstarting position.4.
20、7 The PUF ring is removed from the detached axlecylinder and placed in a sealed container for transport to thelaboratory for analysis.4.8 The PUF ring is extracted and analyzed using specificanalytical procedures for the pesticides of interest. Typicalmethods involve Soxhlet extraction with analysis
21、 of extracts bygas chromatography/mass spectrometry (GC/MS), gaschromatography/electron capture detection (GC/ECD), orother techniques noted in Practice D4861.5. Significance and Use5.1 This practice may be used to estimate the potential forhuman exposure to pesticide residues that may be dislodgedf
22、rom residential floor surfaces by dermal contact. The samplingdevice employed is designed to approximately replicate thepressure applied bya9kgchild crawling or walking on thefloor.5.2 Laboratory tests and field studies have shown that thetransfer coefficient of the sampling device for collection of
23、dried pesticide residues from nylon plush carpets is two tothree times higher than that of a dry hand (palm only) pressedten times at 7300 Pa over the same area of carpet (2, 4, 5).5.3 This practice has been found suitable for use on plushand level loop carpets and vinyl flooring (2, 3).5.4 This pra
24、ctice does not describe procedures for evalua-tion of the safety of floor surfaces or the potential for humanexposure to dislodgeable pesticide residues. It is the usersresponsibility to evaluate the data collected by this practice andmake such determinations in the light of other availableinformati
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