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【英文标准名称】:StandardTestMethodforEstimatingthePermanganateNaturalOxidantDemandofSoilandAquiferSolids
【原文标准名称】:估计土壤和含水层固体的高锰酸钾天然氧化剂需求量的标准试验方法
【标准号】:ASTMD7262-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D18.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Permanganatenaturaloxidantdemand;insituchemicaloxidation;potassiumpermanganate;Aquifers;Permanganateprocess;Permanganatetime;Soil
【摘要】:Thetestmethodisusedtoestimatethepermanganatenaturaloxidantdemandexertedbythesoiloraquifersolidsbydeterminingthequantityofpotassiumpermanganatethatisconsumedbynaturallyoccurringspeciesasafunctionoftime.TypicallythemeasurementofPNODisusedtoscreenpotentialsitesforinsituchemicaloxidation(ISCO)withpermanganate(TestMethodA)andprovideinformationtoaidinthedesignofremediationsystems(TestMethodB).Whilesomeoxidizablespeciesreactrelativelyquickly(thatis,daystoweeks),othersreactmoreslower(weekstomonths).Consequently,thePNODtisexpectedtobesomefractionofthePNODmax.Duetomasstransportrelatedissuesatthefield-scaleitisreasonabletoassumethatthePNODtmeasuredusingthetestmethodmayoverestimatethedemandexertedduringISCOapplications.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/andsoforth.1.1Thistestmethodcoverstheestimationofthepermanganatenaturaloxidantdemand(PNOD)throughthedeterminationofthequantityofpotassiumpermanganate(KMnO4)thatorganicmatterandothernaturallyoccurringoxidizablespeciespresentinsoiloraquifersolidswillconsumeunderspecifiedconditionsasafunctionoftime.Oxidizablespeciesmayincludeorganicconstituentsandoxidizableinorganicions,suchasferrousironandsulfides.Thefollowingtestmethodsareincluded:TestMethodA48-hourPermanganateNaturalOxidantDemandTestMethodBPermanganateNaturalOxidantDemandKinetics1.2Thistestmethodislimitedbythereagentsemployedtoapermanganatenaturaloxidantdemand(PNOD)of60gKMnO4perkgsoiloraquifersolidsafteraperiodof48hours(MethodA)ortwoweeks(MethodB).1.3AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.4Units8212;ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttointerprettheresultsofthedata.Itistheresponsibilityoftheuserofthisstandardtointerprettheresultsobtainedandtodeterminetheapplicabilityoftheseresultspriortouse.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B11
【国际标准分类号】:13_080_01
【页数】:5P.;A4
【正文语种】:英语