SH 2604.03-2003 水处理药剂 聚偏磷酸钠
作者:标准资料网 时间:2024-05-07 16:51:27 浏览:9212
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： | 水处理药剂 聚偏磷酸钠 |
| 英文名称： | Water treatment chemicals -- Sodium Hexametaphosphate |
| 中标分类： | 化工 >> 化学助剂、表面活性剂、催化剂、水处理剂 >> 水处理剂 |
| ICS分类： | 化工技术 >> 化工产品 >> 水净化用化学试剂 |
| 替代情况： | SH 2604.03-1997 |
| 发布日期： | 2003-11-29 |
| 实施日期： | 2004-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 9页 |
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： 化工 化学助剂 表面活性剂 催化剂 水处理剂 水处理剂 化工技术 化工产品 水净化用化学试剂
下载地址: 点击此处下载
基本信息
| 标准名称： | 船用锁 通用技术条件 |
| 中标分类： | 船舶 >> 舾装设备 >> 舱室设备 |
| ICS分类： | 造船和海上建筑物 >> 船舶和海上建筑物综合 |
| 发布日期： | 1992-03-07 |
| 实施日期： | 1992-10-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 5页 |
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： 船舶 舾装设备 舱室设备 造船和海上建筑物 船舶和海上建筑物综合
【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】:
