【英文标准名称】:StandardTestMethodforPurgeableOrganicCompoundsinWaterUsingHeadspaceSampling
【原文标准名称】:用筒底间隙取样技术对水中可提纯有机化合物的试验方法
【标准号】:ASTMD3871-1984(2003)
【标准状态】:现行
【国别】:
【发布日期】:1984
【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】:D19.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;水;含量测定;试样
【英文主题词】:drinkingwater;gaschromatography;purgeandtrap;volatileorganiccompounds
【摘要】:Purgeableorganiccompounds,includingorganohalides,havebeenidentifiedascontaminantsinrawanddrinkingwater.Thesecontaminantsmaybeharmfultotheenvironmentandman.Dynamicheadspacesamplingisagenerallyapplicablemethodforconcentratingthesecomponentspriortogaschromatographicanalysis(1to5).5Thistestmethodcanbeusedtoquantitativelydeterminepurgeableorganiccompoundsinrawsourcewater,drinkingwater,andtreatedeffluentwater.1.1Thistestmethodcoversthedeterminationofmostpurgeableorganiccompoundsthatboilbelow200176;Candarelessthan2%solubleinwater.Itcoversthelow956;g/Ltolowmg/Lconcentrationrange(seeSection15andAppendixX1).1.2Thistestmethodwasdevelopedfortheanalysisofdrinkingwater.Itisalsoapplicabletomanyenvironmentalandwastewaterswhenvalidation,consistingofrecoveringknownconcentrationsofcompoundsofinterestaddedtorepresentativematrices,isincluded.1.3Volatileorganiccompoundsinwateratconcentrationsabove1000956;g/LmaybedeterminedbydirectaqueousinjectioninaccordancewithPracticeD2908.1.4Itistheuser''sresponsibilitytoassurethevalidityofthetestmethodforuntestedmatrices.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin8.5.5.1.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:Mechanicalvibrationandshock-Rangeofidealizedvaluestocharacterizeseated-bodybiodynamicresponseunderverticalvibration
【原文标准名称】:机械振动与冲击表示垂直振动下坐势身体生物动力响应特征的理想值范围
【标准号】:ISO5982-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-11
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC108
【标准类型】:()
【标准水平】:()
【中文主题词】:值域;值;效应;定义;输入阻抗;振动影响(对人体);振动;力学;冲击;放置;垂直;人;生理效应(对人体);人体;机械环境影响(对人体);人类工效学
【英文主题词】:
【摘要】:ThisInternationalStandarddescribestherangeofidealizedvaluesofthedriving-pointmechanicalimpedance,apparentmassandseat-to-headtransmissibilitymodulusandphaseapplicabletoseatedindividualssubjectedtoz-axissinusoidalorbroad-bandrandomvibrationunderspecificexperimentalconditions.Additionally,ahumanbodymodelisprovidedtosatisfytherangeofidealizedvaluesdefinedfordriving-pointmechanicalimpedance/apparentmassandseat-to-headtransmissibility.Thismodelisfurtherusedtocomputevaluesofdriving-pointmechanicalimpedanceandapparentmassforfixedbodymasseswhicharerecommendedtobeusedastestloadsincurrentstandardsdefininglaboratoryseattestingmethodologies.Alternatively,mathematicalexpressionsintheformoftransferfunctionsareprovidedtoapproximatetheweightedmean(target)valuesdefinedforallthreebiodynamicresponsefunctions.TherangesofidealizedvaluesdefinedinthisInternationalStandardareconsideredtobevalidforseatedsubjectssupportedonarigidplatform,withfeetsupportedandvibrated,andmaintaininganerectseatedposturewithoutbackrestsupport.Provisionally,therangeofidealizedseat-to-headtransmissiblityvaluesisconsideredtobeapplicablealsototheconditionwiththefeethangingfreely.Thevaluesaredefinedoverthefrequencyrange0,5Hzto20Hzforsubjectswithinthe49kgto93kgmassrange,subjectedtosinusoidalorbroad-bandrandomvibrationofunweightedr.m.s.amplitudelowerthanorequalto5m/s.Thefrequencyandamplitudecharacteristicsofthevibrationfallwithintherangeforwhichmostvibrationexposureislikelytopredominatewhiledrivingvehiclessuchasagriculturaltractors,earth-movingmachineryandfork-lifttrucks.ApplicationtoautomobilesisatpresentnotcoveredbythisInternationalStandardinviewofthelackofameaningfuldatabaseforconditionsinvolvingpostureandvibrationexcitationlevelsmostlikelyassociatedwithcardriving.Theupperandlowervaluesofmodulusandphasedefinedateachfrequencyforeachofthethreebiodynamicresponsefunctionsconsideredrepresenttherangeofmostprobableoridealizedvalues.Themiddlevaluesrepresentoverallweightedmeansofthehumandata,anddefinethetargetvaluesforgeneralapplications.Suchapplicationsmayinvolvethedevelopmentofmechanicalanaloguesforlaboratoryseattesting,oroffunctionstocorrectforthehumaninterfacewhenrepresentingthebodyasarigidmass,orthedevelopmentofanalyticalhumanbodymodelstobeusedforwhole-bodyvibrationexposureestimationsorforseatandcushiondesignoptimization.Amathematicalrepresentationoftheseatedhumanbodythatfallswithintheupperandlowerlimitenvelopecurvesdefinedfordriving-pointmechanicalimpedance/apparentmassandseat-to-headtransmissibilityisalsoprovidedinannexB,whilemathematicalexpressionsapproximatingtheweightedmean(target)valuesforthesefunctionsaregiveninannexC.Modelvaluesofdriving-pointmechanicalimpedanceandapparentmasscomputedforfixedbodymassesequalorclosetothoserecommendedinspecificlaboratoryseattestingstandardsarealsoprovidedinannexD.
【中国标准分类号】:C71
【国际标准分类号】:13_160
【页数】:28P;A4
【正文语种】:英语