1、Designation:D752116Standard Test Method forDetermination of Asbestos in Soil1This standard is issued under the fixed designation D7521;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
2、indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers a procedure to:(1)identifyasbestos in soil,(2)provide an estimate of the concentration ofasbestos in the sampled soil(dried),and(3)option
3、ally toprovide a concentration of asbestos reported as the number ofasbestos structures per gram of sample.1.2 In this test method,results are produced that may beused for evaluation of sites contaminated by construction,mineand manufacturing wastes,deposits of natural occurrences ofasbestos(NOA),an
4、d other sources of interest to the investiga-tor.1.3 This test method describes the gravimetric,sieve,andother laboratory procedures for preparing the soil for analysisas well as the identification and quantification of any asbestosdetected.Pieces of collected soil and material embeddedtherein that
5、pass through a 19-mm sieve will become part of thesample that is analyzed and for which results are reported.1.3.1 Asbestos is identified and quantified by polarized lightmicroscopy(PLM)techniques including analysis of morphol-ogy and optical properties.Optional transmission electronmicroscopy(TEM)i
6、dentification and quantification of asbestosis based on morphology,selected area electron diffraction(SAED),and energy dispersive X-ray analysis(EDXA).Someinformation about fiber size may also be determined.The PLMand TEM methods use different definitions and size criteria forfibers and structures.S
7、eparate data sets may be produced.1.4 This test method has an analytical sensitivity of 0.25%by weight with optional procedures to allow for an analyticalsensitivity of 0.1%by weight.1.5 This test method does not purport to address samplingstrategies or variables associated with soil environments.Su
8、chconsiderations are the responsibility of the investigator collect-ing and submitting the sample.Appendix X2 covering ele-ments of soil sampling and good field practices is attached.1.6 UnitsThe values stated in SI units are to be regardedas the standard.Other units may be cited in the method forin
9、formational purposes only.1.7 HazardsAsbestos fibers are acknowledged carcino-gens.Breathing asbestos fibers can result in disease of thelungs including asbestosis,lung cancer,and mesothelioma.Precautions should be taken to avoid creating and breathingairborne asbestos particles when sampling and an
10、alyzingmaterials suspected of containing asbestos.1.8 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 regu
11、latory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C136 Test Method for Sieve Analysis of Fine and CoarseAggregatesD1193 Specification for Reagent WaterD3670 Guide for Determination of Precision and Bias ofMethods of Committee D22D6281 Test Method for Airborne Asbestos Concent
12、ration inAmbient and Indoor Atmospheres as Determined byTransmission Electron Microscopy Direct Transfer(TEM)D6620 Practice for Asbestos Detection Limit Based onCountsE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE177 Practice for Use of the Terms Precision and Bias inASTM Test Met
13、hodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 EPA Standards:3EPA 600/R-93/116 Method for the Determination of Asbes-tos in Bulk Building Materials1This test method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direc
14、t responsibility of Subcommittee D22.07 on Sampling andAnalysis of Asbestos.Current edition approved May 1,2016.Published May 2016.Originallyapproved in 2013.Last previous edition approved in 2013 as D7521 13.DOI:10.1520/D7521-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orc
15、ontact 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 United States Environmental Protection Agency(EPA),ArielRios Bldg.,1200 Pennsylvania Ave.,NW,Washington,DC 20004,http:/w
16、ww.epa.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.3 ISO Standards:4ISO 10312:1995 Ambient Air-Determination of AsbestosFibersDirect Transfer Transmission Electron MicroscopyMethod(1st Ed.1995-05-01)ISO 17025 General requirements for the competence oftesting and calibration laboratoriesISO/DIS 22262-1 Bulk materialsPart 1:Sampling andqualitative determination of asbestos in commercial bulkmaterials3.Terminology3.1 Definition
