GB 8919-1988 优质制绳用钢丝
作者:标准资料网 时间:2024-05-02 05:05:13 浏览:8480
来源:标准资料网
下载地址: 点击此处下载
基本信息
| 标准名称： | 优质制绳用钢丝 |
| 中标分类： | 冶金 >> 钢铁产品 >> 钢丝、钢丝绳 |
| 替代情况： | 被GB/T 8919-1996代替 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1989-07-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
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： 冶金 钢铁产品 钢丝 钢丝绳
下载地址: 点击此处下载
【英文标准名称】:Roadvehicles;M18x1,5spark-plugswithconicalseatingandtheircylinderheadhousing
【原文标准名称】:道路车辆.有锥形底座的M18×1.5火花塞和汽缸盖上的座孔
【标准号】:ISO2345-1976
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:StandardGuideforConductingAcuteToxicityTestsonAqueousAmbientSamplesandEffluentswithFishes,Macroinvertebrates,andAmphibians
【原文标准名称】:鱼类、大型无脊椎动物和两栖动物身上流出的含水物质进行剧毒试验的标准指南
【标准号】:ASTME1192-1997(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:E47.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:acutetoxicity;ambientsamples;amphibians;EC50;effluents;freshwaterfishes;freshwaterinvertebrates;LC50;saltwaterfishes;saltwaterinvertebrates;Lifecycle(ofaquaticorganisms);Macroinvertebrates;Samplingwateranalysisapplications;
【摘要】:Anacuteeffluenttoxicitytestisconductedtoobtaininformationconcerningtheimmediateeffectsontestorganismsofashort-termexposuretoaneffluentunderspecificexperimentalconditions.Onecandirectlyexamineacuteeffectsofcomplexmixturesofchemicalsasoccursineffluentsandsomeambientwaters.Acuteeffluenttoxicitytestscanbeusedtoevaluatethepotentialfordesignated-useoraquaticlifeimperimentinthereceivingstream,lake,orestuary.Anacutetoxicitytestdoesnotprovideinformationaboutwhetherdelayedeffectswilloccur,althoughapost-exposureobservationperiod,withappropriatefeedingifnecessary,mightprovidesuchinformation.Resultsofacuteeffluenttestsmightbeusedtopredictacuteeffectslikelytooccuronaquaticorganismsinfieldsituationsasaresultofexposureundercomparableconditions,exceptthat(1)motileorganismsmightavoidexposurewhenpossible,(2)toxicitytobenthicspeciesmightbedependentonsorptionorsettlingofcomponentsoftheeffluentontothesubstrate,and(3)theeffluentmightphysicallyorchemicallyinteractwiththereceivingwater.Resultsofacuteeffluenttestsmightbeusedtocomparetheacutesensitivitiesofdifferentspeciesandtheacutetoxicitiesofdifferenteffluents,andtostudytheeffectsofvariousenvironmentalfactorsonresultsofsuchtests.Acutetestsareusuallythefirststepinevaluatingtheeffectsofaneffluentonaquaticorganisms.Resultsofacuteeffluenttestswilldependonthetemperature,compositionofthedilutionwater,conditionofthetestorganisms,exposuretechnique,andotherfactors.1.1Thisguidecoversproceduresforobtaininglaboratorydataconcerningtheadverseeffectsofanaqueouseffluentoncertainspeciesoffreshwaterandsaltwaterfishes,macroinvertebrates,andamphibians,usuallyduring2to4-dayexposures,dependingonthespecies,usingthestatic,renewal,andflow-throughtechniques.Theseprocedureswillprobablybeusefulforconductingacutetoxicitytestsonaqueouseffluentswithmanyotheraquaticspecies,althoughmodificationsmightbenecessary.1.2Othermodificationsoftheseproceduresmightbejustifiedbyspecialneedsorcircumstances.Althoughusingappropriateproceduresismoreimportantthanfollowingprescribedprocedures,resultsoftestsconductedusingunusualproceduresarenotlikelytobecomparabletoresultsofmanyothertests.Comparisonofresultsobtainedusingmodifiedandunmodifiedversionsoftheseproceduresmightprovideusefulinformationconcerningnewconceptsandproceduresforconductingacutetoxicitytestsonaqueouseffluents.1.3ThisguideisbasedinlargepartonGuideE729.Themajordifferencesbetweenthetwoguidesare(1)themaximumtestconcentrationis100%effluentorambientsample,(2)testingisnotchemicalspecific,and(3)theholdingtimeofeffluentandambientsamplesisoftenconsiderablylessthanthatforchemicalsandothertestmaterials.Becausethesampleisoftenacomplexmixtureofchemicals,analyticaltestscannotgenerallybeusedtoconfirmexposureconcentrations.1.4Selectionofthetechniquetobeusedinaspecificsituationwilldependupontheneedsoftheinvestigatoranduponavailableresources.Statictestsprovidethemosteasilyobtainedmeasureofacutetoxicity,butshouldnotlastlongerthan48h.Renewalandflow-throughtestsmaylastlongerthan48hbecausethepHandconcentrationsofdissolvedoxygenandeffluentaremaintainedatdesiredlevelsanddegradationand......
【中国标准分类号】:Z19
【国际标准分类号】:13_060_70
【页数】:14P.;A4
【正文语种】:英语
【原文标准名称】:道路车辆.有锥形底座的M18×1.5火花塞和汽缸盖上的座孔
【标准号】:ISO2345-1976
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:StandardGuideforConductingAcuteToxicityTestsonAqueousAmbientSamplesandEffluentswithFishes,Macroinvertebrates,andAmphibians
【原文标准名称】:鱼类、大型无脊椎动物和两栖动物身上流出的含水物质进行剧毒试验的标准指南
【标准号】:ASTME1192-1997(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:E47.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:acutetoxicity;ambientsamples;amphibians;EC50;effluents;freshwaterfishes;freshwaterinvertebrates;LC50;saltwaterfishes;saltwaterinvertebrates;Lifecycle(ofaquaticorganisms);Macroinvertebrates;Samplingwateranalysisapplications;
【摘要】:Anacuteeffluenttoxicitytestisconductedtoobtaininformationconcerningtheimmediateeffectsontestorganismsofashort-termexposuretoaneffluentunderspecificexperimentalconditions.Onecandirectlyexamineacuteeffectsofcomplexmixturesofchemicalsasoccursineffluentsandsomeambientwaters.Acuteeffluenttoxicitytestscanbeusedtoevaluatethepotentialfordesignated-useoraquaticlifeimperimentinthereceivingstream,lake,orestuary.Anacutetoxicitytestdoesnotprovideinformationaboutwhetherdelayedeffectswilloccur,althoughapost-exposureobservationperiod,withappropriatefeedingifnecessary,mightprovidesuchinformation.Resultsofacuteeffluenttestsmightbeusedtopredictacuteeffectslikelytooccuronaquaticorganismsinfieldsituationsasaresultofexposureundercomparableconditions,exceptthat(1)motileorganismsmightavoidexposurewhenpossible,(2)toxicitytobenthicspeciesmightbedependentonsorptionorsettlingofcomponentsoftheeffluentontothesubstrate,and(3)theeffluentmightphysicallyorchemicallyinteractwiththereceivingwater.Resultsofacuteeffluenttestsmightbeusedtocomparetheacutesensitivitiesofdifferentspeciesandtheacutetoxicitiesofdifferenteffluents,andtostudytheeffectsofvariousenvironmentalfactorsonresultsofsuchtests.Acutetestsareusuallythefirststepinevaluatingtheeffectsofaneffluentonaquaticorganisms.Resultsofacuteeffluenttestswilldependonthetemperature,compositionofthedilutionwater,conditionofthetestorganisms,exposuretechnique,andotherfactors.1.1Thisguidecoversproceduresforobtaininglaboratorydataconcerningtheadverseeffectsofanaqueouseffluentoncertainspeciesoffreshwaterandsaltwaterfishes,macroinvertebrates,andamphibians,usuallyduring2to4-dayexposures,dependingonthespecies,usingthestatic,renewal,andflow-throughtechniques.Theseprocedureswillprobablybeusefulforconductingacutetoxicitytestsonaqueouseffluentswithmanyotheraquaticspecies,althoughmodificationsmightbenecessary.1.2Othermodificationsoftheseproceduresmightbejustifiedbyspecialneedsorcircumstances.Althoughusingappropriateproceduresismoreimportantthanfollowingprescribedprocedures,resultsoftestsconductedusingunusualproceduresarenotlikelytobecomparabletoresultsofmanyothertests.Comparisonofresultsobtainedusingmodifiedandunmodifiedversionsoftheseproceduresmightprovideusefulinformationconcerningnewconceptsandproceduresforconductingacutetoxicitytestsonaqueouseffluents.1.3ThisguideisbasedinlargepartonGuideE729.Themajordifferencesbetweenthetwoguidesare(1)themaximumtestconcentrationis100%effluentorambientsample,(2)testingisnotchemicalspecific,and(3)theholdingtimeofeffluentandambientsamplesisoftenconsiderablylessthanthatforchemicalsandothertestmaterials.Becausethesampleisoftenacomplexmixtureofchemicals,analyticaltestscannotgenerallybeusedtoconfirmexposureconcentrations.1.4Selectionofthetechniquetobeusedinaspecificsituationwilldependupontheneedsoftheinvestigatoranduponavailableresources.Statictestsprovidethemosteasilyobtainedmeasureofacutetoxicity,butshouldnotlastlongerthan48h.Renewalandflow-throughtestsmaylastlongerthan48hbecausethepHandconcentrationsofdissolvedoxygenandeffluentaremaintainedatdesiredlevelsanddegradationand......
【中国标准分类号】:Z19
【国际标准分类号】:13_060_70
【页数】:14P.;A4
【正文语种】:英语
