YDN 067-1997 ATM 交换机技术规范(暂行规定)

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基本信息
标准名称:ATM 交换机技术规范(暂行规定)
中标分类: 通信、广播 >> 通信设备 >> 电话通信设备
替代情况:被YD/T 1109-2001代替
发布日期:1998-01-05
实施日期:1994-02-01
首发日期:
作废日期:2001-07-01
起草单位:邮电部电信传输研究所,北京邮电大学
出版日期:
页数:88页
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所属分类: 通信 广播 通信设备 电话通信设备
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【英文标准名称】:StandardTestMethodforDeterminingtheArcRatingofMaterialsforClothing
【原文标准名称】:测定服装材料电弧热值的标准试验方法
【标准号】:ASTMF1959/F1959M-2006ae1
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:F18.65
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thistestmethodisintendedforthedeterminationofthearcratingofamaterial,oracombinationofmaterials.5.1.1Becauseofthevariabilityofthearcexposure,differentheattransmissionvaluesmaybeobservedatindividualsensors.EvaluatetheresultsofeachsensorinaccordancewithSection12.Thistestmethodmaintainsthespecimeninastatic,verticalpositionanddoesnotinvolvemovementexceptthatresultingfromtheexposure.Thistestmethodspecifiesastandardsetofexposureconditions.Differentexposureconditionsmayproducedifferentresults.Inadditiontothestandardsetofexposureconditions,otherconditionsrepresentativeoftheexpectedhazardmaybeusedandshallbedocumentedinthereportingofthetestingresults.1.1Thistestmethodisusedtomeasurethearcratingofmaterialsintendedforuseasflameresistantclothingforworkersexposedtoelectricarcsthatwouldgenerateheatfluxratesfrom84to25120kW/m2[2to600cal/cm2s].1.2Thistestmethodwillmeasurethearcratingofmaterialswhichmeetthefollowingrequirements:lessthan150mm[6in.]charlengthandlessthan2safterflamewhentestedinaccordancewithTestMethodD6413.1.2.1Itisnottheintentofthistestmethodtoevaluatenonflame-resistantmaterialsexceptwhereusedasunderlayersinmultiple-layerspecimens.1.3Thematerialsusedinthistestmethodareintheformofflatspecimens.1.4Thistestmethodshallbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoconvectiveandradiantenergygeneratedbyanelectricarcundercontrolledlaboratoryconditions.1.5ThevaluesstatedinSIunitsshallberegardedasstandardexceptasnoted.Withinthetext,alternateunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalentsthereforealternatesystemsmustbeusedindependentlyoftheother.Combiningvaluesfromthesystemsdescribedinthetextmayresultinnonconformancewiththemethod.1.6Thistestmethoddoesnotapplytoelectricalcontactorelectricalshockhazards.1.7Thisstandardshallnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardofaparticularenduse.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.Forspecificprecautions,seeSection7.
【中国标准分类号】:Y76
【国际标准分类号】:61_020
【页数】:14P.;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforConductingThree-Brood,RenewalToxicityTestswithCeriodaphniadubia
【原文标准名称】:用网纹水蚤(Dubia)进行三卵、复原毒性试验的标准指南
【标准号】:ASTME1295-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:毒性;毒理测定;医学科学;导则
【英文主题词】:Ceriodaphniadubia;Cladocera;effluent;lifecycle;testmaterial;three-broodtoxicitytest
【摘要】:1.1Thisguidedescribesproceduresforobtainingdataconcerningtheadverseeffectsofaneffluentoratestmaterial(addedtodilutionwater,butnottofood)onCeriodaphniadubiaRichard1894,duringcontinuousexposurethroughoutaportionoftheorganism''slife.TheseproceduresshouldalsobeusefulforconductinglifecycletoxicitytestswithotherCladocera(GuideE1193),althoughmodificationswillbenecessary.1.2Theseproceduresareapplicabletomostchemicals,eitherindividuallyorinformulations,commercialproducts,orknownmixtures,thatcanbemeasuredaccuratelyatthenecessaryconcentrationsinwater.Withappropriatemodificationstheseprocedurescanbeusedtoconducttestsontemperature,dissolvedoxygen,pH,andonsuchmaterialsasaqueouseffluents(seealsoGuideE1192),leachates,oils,particulatematter,sediments(seealsoGuideE1383),andsurfacewaters.Renewaltestsmightnotbeapplicabletomaterialsthathavehighoxygendemand,arehighlyvolatile,arerapidlybiologicallyorchemicallytransformed,orsorbtotestchambers.Iftheconcentrationofdissolvedoxygenfallsbelow4mg/Lortheconcentrationoftestmaterialdecreasesbymorethan20%intestsolution(s)betweenrenewals,morefrequentrenewalsmightbenecessary.1.3Othermodificationsoftheseproceduresmightbejustifiedbyspecialneedsorcircumstances.Resultsoftestsconductedusingunusualproceduresarenotlikelytobecomparabletoresultsofmanyothertests.Comparisonsofresultsobtainedusingmodifiedandunmodifiedversionsoftheseproceduresmightprovideusefulinformationonnewconceptsandproceduresforconductingthree-broodtoxicitytestswithC.dubia.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection8.1.4Thisguideisarrangedasfollows:SectionReferencedDocuments2Terminology3SummaryofGuide4SignificanceandUse5Apparatus6Facilities6.1ConstructionMaterials6.2TestChambers6.3Cleaning6.4ReagentsandMaterials7Hazards8DilutionWater9Requirements9.1Source9.2Treatment9.3Characterization9.4TestMaterial10General10.1StockSolution10.2Effluent10.3TestConcentration(s)10.4Collection10.5SampleContainers10.6Preservation10.7Treatment10.8TestOrganisms11Species11.1Age11.2Source11.3BroodStock11.4Food11.5Handling11.6Quality11.7Procedure12DemonstrationofFeasibility12.1ExperimentalDesign12.2DissolvedOxygen12.3Temperature12.4PreparingTestSolutions12.5ConditioningTestChambers12.6BeginningaTest12.......
【中国标准分类号】:C05
【国际标准分类号】:07_100_20
【页数】:20P.;A4
【正文语种】: