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JB/T 6534-1992 离心式污水泵 型式与基本参数

作者:标准资料网 时间:2024-05-12 12:08:37  浏览:8434   来源:标准资料网
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基本信息
标准名称:离心式污水泵 型式与基本参数
中标分类: 机械 >> 通用机械与设备 >> 泵
替代情况:替代JB 2975-81;被JB/T 6534-2006代替
发布部门:沈阳水泵研究所
发布日期:1992-12-25
实施日期:1993-07-01
首发日期:1900-01-01
作废日期:2007-03-01
归口单位:沈阳水泵研究所
出版日期:1900-01-01
页数:7 页
批文号:机电科标[1992]2135号
适用范围

本标准规定了离心式污水泵的型式与基本参数。 本标准适用于输送污水、粪便或含有纤维、纸屑、果品、鱼类等固体悬浮物液体的泵。

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所属分类: 机械 通用机械与设备 泵
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforNondestructiveDetectionofLeaksinPackagesbyVacuumDecayMethod
【原文标准名称】:用真空衰变法的包装紧密性无损检验的标准试验方法
【标准号】:ASTMF2338-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:F02.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:衰变;检漏;非破坏性的;包装件;运输;真空的
【英文主题词】:absolutepressuretransducer;barrierperformance;block;criteriaparameters;differentialpressuretransducer;flexiblepackaging;foodpackages;holeleaks;holes;leaks;mask;medicalpackages;non-destructivetesting;packageintegritymonitoring;packageintegritytest;permeablepackaging;pharmaceuticalpackages;porousbarrier;porousbarriermaterial;porouspackaging;pressurechangeleaktesting;pressuretransducer;sealintegritymonitoring;sealintegritytest;sealleaks;semi-rigidthermoformedtrays;sterileintegritytest;vacuumdecayleaktesting;vacuumleaktesting;volumetricairflowmeter
【摘要】:Leaksinmedicaldevice,pharmaceuticalandfoodpackagesmayresultintheingressofunwantedgases(mostcommonlyoxygen),harmfulmicrobiologicalorparticulatecontaminants.Packageleaksmayappearasimperfectionsinthepackagecomponentsthemselvesoratthesealjuncturebetweenmatedcomponents.Theabilitytodetectleaksisnecessarytoensureconsistencyandintegrityofpackages.Afterinitialset-upandcalibration,theoperationsofindividualtestsmaybesemi-automatic,automaticormanual.Thetestmethodpermitsthenon-destructivedetectionofleaksnotvisiblydetectable.Thetestmethoddoesnotrequiretheintroductionofanyextraneousmaterialsorsubstances,suchasdyesorgases.However,itisimportanttophysicallymaskorblockoffanyporousbarriersurfaceofthepackageduringthetesttopreventarapidlossofchambervacuumresultingprimarilyfromgasmigrationthroughtheporoussurface.Leakdetectionisbasedsolelyontheabilitytodetectthechangeinpressureinsidethetestchamberasaresultofairegressfromtheproperlymaskedpackagewhenchallengedwithvacuumconditions.Thistestisausefulresearchtoolforoptimizationofpackagesealingparametersandforcomparativeevaluationofvariouspackagesandmaterials.Thistestmethodisalsoapplicabletoproductionsettingsasitisrapid,non-invasiveandnon-destructive,makingitusefulforeither100%on-linetestingortoperformtestsonastatisticalsamplingfromtheproductionoperation.Leaktestresultsthatexceedthepermissiblelimitsforthevacuumdecaytestareindicatedbyaudibleorvisualsignalresponses,orboth.1.1TestPackagesPackagesthatcanbenondestructivelyevaluatedbythistestmethodinclude:1.1.1Rigidandsemi-rigidnon-liddedtrays.1.1.2Traysorcupssealedwithporousbarrierliddingmaterial.1.1.3Rigid,nonporouspackages.1.1.4Flexible,nonporouspackages(see1.2.4).1.2LeaksDetected-Thistestmethodiscapableofdetectingpackageleaksusinganabsoluteordifferentialpressuretransducerleakdetector.Thesensitivityofatestisafunctionofthesensitivityofthetransducer,thepackagedesign,thedesignofthepackagetestfixture,andcriticaltestparametersoftimeandpressure.Typesandsizesofleaksthatmaybedetectedforvariouspackagesystems,aswellastestsensitivitiesaredescribedbelow.Thesedataarebasedonprecisionandbiasconfirmationstudies.1.2.1TraysorCups(Non-lidded)-Holeorcrackdefectsinthewallofthetray/cupofatleast50mindiametercanbedetectedataTargetVacuumof4104Pa(400mbar)usinganabsolutepressuretransducertestinstrument.1.2.2TraysSealedwithPorousBarrierLiddingMaterial-Holeorcrackdefectsinthewallofthetray/cupofatleast100mindiametercanbedetected.Channeldefectsinthesealarea(madeusingwiresof125mindiameter)canbedetected.Severesealbondingdefectsinbothcontinuousadhesiveanddotmatrixadhesivepackagesystemscanbedetected.Slightlyincompletedotmatrixadhesivebondingdefectscanalsobedetected.AllporousbarrierliddingmaterialpackagesweretestedataTargetVacuumof4104Pa(400mbar)usinganabsolutepressuretransducertestinstrument.Usingacalibratedvolumetricairflowmeter,thesensitivityofthetestforporousliddedpackagesisshowntobeapproximately10-2Pam3s-1.1.2.3Rigid,NonporousPackages-Holedefectsofatleast5mindiametercanbedetected.Allrigid,nonporouspackagesweretestedatatargetvacuumof5104Pa(500mbar)usingadifferentialpressuretransducertestinstrument.Usingacalibratedvolumetricairflowmeter,thesensitivityofthetestforrigid,nonporouspackagesisshowntobeapproxima......
【中国标准分类号】:A82
【国际标准分类号】:55_180_40;55_180_40
【页数】:9P.;A4
【正文语种】:


【英文标准名称】:StandardSpecificationforEyeProtectiveDevicesforPaintballSports
【原文标准名称】:彩弹射击游戏用护眼装置标准规范
【标准号】:ASTMF1776-2010
【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】:F08.57
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:EHPD;eyeandheadprotectivedevices;eyeprotectivedevices;eyeprotectors;goggles;paintball;paintballsports;Eyeprotectors;Paintballsports--specifications;Sportsequipment--specifications;Sportsprotectiveequipment--specifications
【摘要】:1.1Thisspecificationappliestoeye,face,andheadprotectivedevices,designedforusebyplayersofthesportofpaintball,whichminimizeorsignificantlyreduceinjurytotheeye,adnexaofeye,face,andheadduetopaintballimpactorpenetration,orboth.1.2EHPDsbynatureprovidethreetypesofprotection.Thefirsttypeofprotectionisfortheeyesandadnexaofeyeandnotnecessarilyforanyotherpartsofthefaceorhead.Thesecondtypeofprotectionaddscoveragefortheearsandface.ThethirdtypeofcoverageaddscranialcoverageinadditiontothatprovidedtotypesIIandIII.ThesecoveragetypesaredefinedinSection8.1.3ThisspecificationdoesnotlimitthewearingofeyeglassesorcontactlenseswhenusedinconjunctionwiththeEHPD.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y56
【国际标准分类号】:97_220_40
【页数】:12P.;A4
【正文语种】:英语



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