基本信息
| 标准名称： | 工业用碳酸氢按砷含量的测定砷斑法 |
| 英文名称： | Ammonium hydrogen carbonate for industrial use--Determination of arsenic content--Gutzeit method |
| 中标分类： |
化工 >>
无机化工原料 >>
无机盐 |
| ICS分类： |
化工技术 >>
无机化学 >>
盐
|
| 替代情况： | 被GB/T 6276.8-2010代替 |
| 发布部门： | 国家标准局 |
| 发布日期： | 1986-04-18 |
| 实施日期： | 1987-08-01 |
| 首发日期： | 1986-04-18 |
| 作废日期： | 2011-01-01 |
| 主管部门： | 中国石油和化学工业协会 |
| 提出单位： | 中华人民共和国化学工业部 |
| 归口单位： | 中华人民共和国化学工业部 |
| 起草单位： | 化工部上海化工研究院、大连化学工业公司 |
| 起草人： | 赵育为、廖博猷 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1987-08-01 |
| 页数： | 16开/页数：2/字数：5千字 |
适用范围
本标准适用于工业用碳酸氢铵中砷含量的测定。
前言
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目录
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引用标准
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所属分类： 化工 无机化工原料 无机盐 化工技术 无机化学 盐
【英文标准名称】:StandardGuideforConductingaSensitivityAnalysisforaGround-WaterFlowModelApplication
【原文标准名称】:地下水流样品应用的灵敏度分析标准导则
【标准号】:ASTMD5611-1994(2002)
【标准状态】:现行
【国别】:
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:计算机;校准;地下;土壤;导则;地下水;取样;水文地质系统;有关材料;灵敏度分析;水流样品应用;水样品
【英文主题词】:calibration;computer;groundwater;modeling;sensitivity;
【摘要】:Afteramodelhasbeencalibratedandusedtodrawconclusionsaboutaphysicalhydrogeologicsystem(forexample,estimatingthecapturezoneofaproposedextractionwell),asensitivityanalysiscanbeperformedtoidentifywhichmodelinputshavethemostimpactonthedegreeofcalibrationandontheconclusionsofthemodelinganalysis.Ifvariationsinsomemodelinputsresultininsignificantchangesinthedegreeofcalibrationbutcausesignificantlydifferentconclusions,thenthemerefactofhavingusedacalibratedmodeldoesnotmeanthattheconclusionsofthemodelingstudyarevalid.Thisguideisnotmeanttobeaninflexibledescriptionoftechniquesofperformingasensitivityanalysis;othertechniquesmaybeappliedasappropriateand,afterdueconsideration,someofthetechniqueshereinmaybeomitted,altered,orenhanced.1.1Thisguidecoverstechniquesthatshouldbeusedtoconductasensitivityanalysisforaground-waterflowmodel.Thesensitivityanalysisresultsinquantitativerelationshipsbetweenmodelresultsandtheinputhydraulicpropertiesorboundaryconditionsoftheaquifers.1.2Afteraground-waterflowmodelhasbeencalibrated,asensitivityanalysismaybeperformed.Examinationofthesensitivityofcalibrationresidualsandmodelconclusionstomodelinputsisamethodforassessingtheadequacyofthemodelwithrespecttoitsintendedfunction.1.3Afteramodelhasbeencalibrated,amodelermayvarythevalueofsomeaspectoftheconditionsapplyingsolelytothepredictionsimulationsinordertosatisfysomedesigncriteria.Forexample,thenumberandlocationsofproposedpumpingwellsmaybevariedinordertominimizetherequireddischarge.Insofarastheseaspectsarecontrollable,variationoftheseparametersispartofanoptimizationprocedure,and,forthepurposesofthisguide,wouldnotbeconsideredtobeasensitivityanalysis.Ontheotherhand,estimatesoffutureconditionsthatarenotcontrollable,suchastherechargeduringapostulateddroughtofunknowndurationandseverity,wouldbeconsideredascandidatesforasensitivityanalysis.1.4Thisguidepresentsthesimplestacceptabletechniquesforconductingasensitivityanalysis.Othertechniqueshavebeendevelopedbyresearchersandcouldbeusedinlieuofthetechniquesinthisguide.1.5Thisguideiswrittenforperformingsensitivityanalysesforground-waterflowmodels.However,thesetechniquescouldbeappliedtoothertypesofground-waterrelatedmodels,suchasanalyticalmodels,multi-phaseflowmodels,non-continuum(karstorfractureflow)models,ormasstransportmodels.1.6Thisguideisoneofaseriesonground-watermodelingcodes(software)andtheirapplications,suchasGuideD5447andGuideD5490.Otherstandardshavebeenpreparedonenvironmentalmodeling,suchasPracticeE978.1.7Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninparenthesesareforinformationonly.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.9Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorjudgement.Notallaspectsofthisguidemaybeapplicalbeinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapp......
【中国标准分类号】:P12
【国际标准分类号】:13_060_10
【页数】:5P.;A4
【正文语种】: