【英文标准名称】:StandardPracticesforElectricalMethodsforLocatingLeaksinGeomembranesCoveredwithWaterorEarthMaterials
【原文标准名称】:水或土料覆盖的土工膜上漏洞定位的电方法的标准实施规程
【标准号】:ASTMD7007-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D35.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:constructionqualityassurance;electricalleaklocationmethod;geomembrane;leakdetection;leaklocation;Constructionqualityassurance;Earthcoverings;Electricalleaklocation;Geomembranes;Leaktesting--geosynthetics;Moistureanalysis--geosy
【摘要】:Geomembranesareusedasimpermeablebarrierstopreventliquidsfromleakingfromlandfills,ponds,andothercontainments.Theliquidsmaycontaincontaminantsthatifreleasedcancausedamagetotheenvironment.Leakingliquidscanerodethesubgrade,causingfurtherdamage.Leakagecanresultinproductlossorotherwisepreventtheinstallationfromperformingitsintendedcontainmentpurpose.Forthesereasons,itisdesirablethatthegeomembranehaveaslittleleakageaspractical.Geomembraneleakscanbecausedbypoorqualityofthesubgrade,poorqualityofthematerialplacedonthegeomembrane,accidents,poorworkmanship,andcarelessness.Themostsignificantcausesofleaksingeomembranesthatarecoveredwithonlywaterarerelatedtoconstructionactivitiesincludingpumpsandequipmentplacedonthegeomembrane,accidentalpunctures,andpuncturescausedbytrafficoverrocksordebrisonthegeomembraneorinthesubgrade.Themostsignificantcauseofleaksingeomembranescoveredwithearthmaterialsisconstructiondamagecausedbymachinerythatoccurswhileplacingtheearthmaterialonthegeomembrane.Suchdamagealsocanbreachadditionallayersoftheliningsystemsuchasgeosyntheticclayliners.Electricalleaklocationmethodsareaneffectivefinalqualityassurancemeasuretolocatepreviouslyundetectedormissedleaks.1.1Thesepracticesdescribestandardproceduresforusingelectricalmethodstolocateleaksingeomembranescoveredwithwaterorearthmaterialscontainingmoisture.1.2Thesepracticesareintendedtoensurethatleaklocationsurveysareperformedwithdemonstratedleakdetectioncapability.Toallowfurtherinnovations,andbecausevariousleaklocationpractitionersuseawidevarietyofproceduresandequipmenttoperformthesesurveys,performance-basedoperationsareusedthatspecifytheminimumleakdetectionperformancefortheequipmentandprocedures.1.3Thesepracticesrequirethattheleaklocationequipment,procedures,andsurveyparametersusedaredemonstratedtoresultinanestablishedminimumleakdetectionsensitivity.Thesurveyshallthenbeconductedusingthedemonstratedequipment,procedures,andsurveyparameters.1.4Separateproceduresaregivenforleaklocationsurveysforgeomembranescoveredwithwaterandforgeomembranescoveredwithearthmaterials.Separateproceduresaregivenforleakdetectionsensitivitytestsusingactualandartificialleaks.1.5Leaklocationsurveyscanbeusedongeomembranesinstalledinbasins,ponds,tanks,oreandwastepads,landfillcells,landfillcaps,andothercontainmentfacilities.Theproceduresareapplicableforgeomembranesmadeofmaterialssuchaspolyethylene,polypropylene,polyvinylchloride,chlorosulfonatedpolyethylene,bituminousmaterial,andotherelectrically-insulatingmaterials.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Warningx2014;Theelectricalmethodsusedforgeomembraneleaklocationcouldusehighvoltages,resultinginthepotentialforelectricalshockorelectrocution.Thishazardmightbeincreasedbecauseoperationsmightbeconductedinornearwater.Inparticular,ahighvoltagecouldexistbetweenthewaterorearthmaterialandearthground,oranygroundedconductor.TheseproceduresarepotentiallyVERYDANGEROUS,andcanresultinpersonalinjuryordeath.Theelectricalmethodsusedforgeomembraneleaklocationshouldbeattemptedonlybyqualifiedandexperiencedpersonnel.Appropriatesafetymeasuresmustbetakentoprotecttheleaklocationoperatorsaswellasotherpeopleatthesite.1.8Thisstanda......
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:12P.;A4
【正文语种】:英语
基本信息
标准名称: | 石墨炉原子吸收分光光度方法通则 |
英文名称: | General rules for graphite furnace atomic absorption spectrophotometry |
中标分类: |
仪器、仪表 >>
物质成分分析仪器与环境监测仪器 >>
色谱仪 |
发布日期: | 1997-01-23 |
实施日期: | 1997-04-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 9页 |
适用范围
本标准规定了石墨炉原子吸收分光光度法,适用于新购置的和在用的各种类型的石墨炉原子吸收分光光度计。
前言
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目录
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引用标准
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所属分类: 仪器 仪表 物质成分分析仪器与环境监测仪器 色谱仪