基本信息
| 标准名称： | 钢球直径检查仪检定规程 |
| 中标分类： |
综合 >>
计量 >>
长度计量 |
| 发布日期： | |
| 实施日期： | 1993-07-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 6页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 综合 计量 长度计量
【英文标准名称】:StandardPracticeforCollectionandHandlingofSoilsObtainedinCoreBarrelSamplersforEnvironmentalInvestigations
【原文标准名称】:环境勘察用岩心管样品机获取的土壤的收集和处置的标准实施规程
【标准号】:ASTMD6640-2001(2005)
【标准状态】:现行
【国别】:
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D34.01.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:contaminants;corebarrelsamplers;split-barrel,ring-linedbarrel;subsurfacesoilsampling;thin-walledtube
【摘要】:Oftenduringenvironmentalinvestigations,soilsareanalyzedafterbeingcollectedfromthesurface,thevadosezone(D653)andsometimesfrombelowthegroundwatertabletoidentifyandquantifythepresenceofachemicalcontaminant.Acontaminantisasubstancethatistypicallyhazardousandeitherisnotnormallypresentorthatoccursnaturallybutisofanuncharacteristicallyhighconcentration(D4687).Athree-dimensionalspatialarrayofsamplescanoftenprovideinformationastothesourceandroute(s)ofmigrationofthecontaminant.Theresultantinformationisusedtodirectremedialandcorrectiveactionsorcanbeusedformonitoringpurposes.Obtainingasoilsamplewithacorebarrelsamplerinvolvesdrivingthisdeviceintothegroundandthenretrievingitforsampleprocessing.Severalmethodsforadvancingacorebarrelaregenerallyacceptable(e.g.,D1586,D1587,D3550,D4700,D5784,D5875,D5876,D6151,D6282,andD6286).Drillingmethodsthatusedrillingfluids(liquidsorair)shouldbeavoidedbecausetheyaremoresusceptibletocross-contamination(Seesection5.1.6).1.1Thispracticecoversproceduresforobtainingsoilsfromcorebarrelsamplersforchemicalandphysicalanalysis,withanemphasisonthecollectionandhandlingproceduresthatmaintaintherepresentativenessofthechemicalcontaminantsofconcern.Corebarrelsamplersareinitiallyempty(hollow)untiltheyarepushedintothegroundtocollectandretrieveacylindricalsoilsamplewithminimaldisturbance.Theselectionofequipmentandthesamplehandlingproceduresaredependentonthesoilproperties,thedepthofsampling,andthegeneralpropertiesofthechemicalcontaminantsofconcern,thatis,volatileorganiccompounds,semi-volatileorganiccompounds,andinorganicconstituents.Thesamplingproceduresdescribedaredesignedtomaintainrepresentativeconcentrationsofthecontaminantsregardlessoftheirphysicalstate(s),thatis,solid,liquidorgas.1.2Fourgeneraltypesofcorebarrelsamplersarediscussedinthispractice:split-barrel,ring-linedbarrel,thin-walledtube,andsolid-barrelsamplers.1.3Thisdocumentdoesnotcoverallthecorebarreldevicesthatareavailableforthecollectionofsoilsamples.1.4Theproceduresdescribedmayormaynotbeapplicabletohandlingofsamplesforassessingcertaingeotechnicalproperties,forexample,soilporosity.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:13_080_01
【页数】:6P.;A4
【正文语种】: