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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


【英文标准名称】:Safetyoftransportablemotor-operatedelectrictools.Particularrequirementsforthreadingmachines
【原文标准名称】:便携式电动操作电动工具的安全性.对攻丝机的特殊要求
【标准号】:BSEN61029-2-12-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-07-31
【实施或试行日期】:2011-07-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Accidentprevention;Classification;Corrosionprotection;Definitions;Electricappliances;Electriccontactprotection;Electricmains;Electrictools;Electricalsafety;Electrically-operateddevices;Equipmentsafety;Interferencesuppression;Machinetools;Machines;Marking;Mechanicalsafety;Motor-operated;Occupationalsafety;Portable;Properties;Protectionagainstelectricshocks;Safety;Safetyofmachinery;Safetyrequirements;Testing;Threadingmachines;Tools
【摘要】:ThisclauseofPart1isapplicableexceptasfollows:1.1Addition:ThisEuropeanStandardappliestopipethreadingtoolsthatcreateexternalthreadsbyrotatingeithertheworkpieceorthecuttinghead.
【中国标准分类号】:K64
【国际标准分类号】:25_080_99;25_100_50
【页数】:30P.;A4
【正文语种】:英语