BS EN 27740-1992 带可拆卸刀片的外科手术刀尺寸规范
作者:标准资料网 时间:2024-05-22 20:04:47 浏览:8117
来源:标准资料网
【英文标准名称】:Specificationfordimensionsofsurgicalscalpelswithdetatchableblades
【原文标准名称】:带可拆卸刀片的外科手术刀尺寸规范
【标准号】:BSEN27740-1992
【标准状态】:现行
【国别】:英国
【发布日期】:1992-10-15
【实施或试行日期】:1992-10-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:可拆卸的;无菌设备;医疗器械;解剖刀;手术器械;尺寸;手术刀;刀片;手柄(工具);医疗设备
【英文主题词】:Blades;Clamps;Connectingdimensions;Dimensioninaclassoffits;Dimensions;Exchangeable;Finemechanics;Handleshafts;Handles;Instruments;Medicalequipment;Medicalsciences;Replaceability;Scalpels;Surgery;Surgicalequipment;Surgicalinstruments;Surgicalknives;Tolerances(measurement)
【摘要】:Specifiesdimensionsofsmallandlargesizesofattachmentfittings.
【中国标准分类号】:C31
【国际标准分类号】:11_040_30
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforPreparingSulfurPrintsforMacrostructuralExamination
【原文标准名称】:宏观结构检验用硫印准备的标准实施规范
【标准号】:ASTME1180-2003e1
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:E04.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:试验;准备;金属;工艺;硫
【英文主题词】:Baumannprint;ferrousalloys;macrostructuralexamination;photographicpaper;specimenpreparation;sulferprint
【摘要】:Thesulfurprintrevealsthedistributionofsulfurassulfideinclusionsinthespecimen.Thesulfurprintcomplementsmacroetchmethodsbyprovidinganadditionalprocedureforevaluatingthehomogeneityofasteelproduct.Sulfurprintsofas-castspecimensgenerallyrevealthesolidificationpatternandmaybeusedtoassessthenatureofdeoxidation,thatis,rimmingactionversuskilledsteelsulfurdistributions.Sulfurprintswillrevealsegregationpatterns,includingrefilledcracks,andmayrevealcertainphysicalirregularities,forexample,porosityorcracking.Thenatureofmetalflow,suchasinvariousforgingoperations,canberevealedusingsulfurprintsofspecimenscutparalleltothemetalflowdirection.Thesulfurprintmethodissuitableforprocesscontrol,researchanddevelopmentstudies,failureanalysis,andformaterialacceptancepurposes.Theintensityofthesulfurprintisinfluencedbytheconcentrationofsulfurinthesteel,thechemicalcompositionofthesulfideinclusions,theaggressivenessoftheaqueousacidsolution,andthedurationofthecontactprintingbetweentheacidsoakedemulsioncoatedpaperandthegroundsurfaceofthespecimen(thistimeistheorderofsecondsratherthanminutes).Verylowsulfurcontentsteelswillproducetoofaintanimagetobeusefulformacrostructuralevaluations.Selectionofappropriateprintingpracticesincludingselectionoftypeofemulsioncoatedmedia,acidtypeandstrength,willyieldsatisfactoryprints.VeryfaintimagesinthesulfurprintcanbemademorevisiblebyscanningthesulfurprintintoaPC,andusingaphotoeditortoincreasethecolorsaturation.Steelswithcompositionsthatproducepredominantlytitaniumorchromiumsulfideswillnotproduceusefulimages.1.1Thispracticeprovidesinformationrequiredtopreparesulfurprints(alsoreferredtoasBaumannPrints)ofmostferrousalloystorevealthedistributionofsulfideinclusions.1.2Thesulfurprintrevealsthedistributionofsulfidesinsteelswithbulksulfurcontentsbetweenabout0.002and0.40weightpercent.1.3Certainsteelscontaincomplexsulfidesthatdonotrespondtothetestsolutions,forexample,steelscontainingtitaniumsulfidesorchromiumsulfides.1.4Thesulfurprinttestisaqualitativetest.Thedensityoftheprintimageshouldnotbeusedtoassessthesulfurcontentofasteel.Undercarefullycontrolledconditions,itispossibletocompareprintimageintensitiesiftheimagesareformedonlybymanganesesulfides.1.5Thesulfurprintimagewillrevealdetailsofthesolidificationpatternormetalflowfromhotorcoldworkingonappropriatelychosenandpreparedtestspecimens.1.6Thispracticedoesnotaddressacceptancecriteriabasedontheuseofthemethod.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,seeSection9.
【中国标准分类号】:G04
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:StandardGuideforTestingLeave-OnProductsUsingIn-SituMethods
【原文标准名称】:现场法测试Leave-On产品用标准指南
【标准号】:ASTME2361-2004
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【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】:C47
【国际标准分类号】:11_140
【页数】:5P;A4
【正文语种】:英语
