BS 779-1989 集中供热与间接热水供应用(额定输出为44KW(含)以上)铸铁锅炉规范
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【英文标准名称】:Specificationforcastironboilersforcentralheatingandindirecthotwatersupply(ratedoutput44kWandabove)
【原文标准名称】:集中供热与间接热水供应用(额定输出为44KW(含)以上)铸铁锅炉规范
【标准号】:BS779-1989
【标准状态】:现行
【国别】:英国
【发布日期】:1989-10-31
【实施或试行日期】:1989-10-31
【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】:安全阀;热水集中供暖;额定值;加热设备;检验;热水锅炉;设计;温度;自动控制系统;锅炉;作标记;电气布线系统;压力;供热水系统;集中供暖;装配;铸铁;间接供应热水
【英文主题词】:Automaticcontrolsystems;Boilers;Cast-iron;Centralheating;Design;Electricwiringsystems;Heatingequipment;Hot-waterboilers;Hot-watercentralheating;Hot-watersupplysystems;Indirecthot-watersupply;Inspection;Installation;Marking;Pressure;Ratings;Safetyvalves;Temperature
【摘要】:Designandconstructionincludingmaterialsworkmanship,inspection,testingandmarking,ofboilersforusewithsolidgaseousandliquidfuels.
【中国标准分类号】:J98
【国际标准分类号】:91_140_10
【页数】:20P;A4
【正文语种】:英语
基本信息
| 标准名称： | 大直径螺母 |
| 中标分类： |
化工 >>
化工机械与设备 >>
化工机械与设备零部件 |
| ICS分类： |
化工技术 >>
化工设备
|
| 发布日期： | 1995-08-28 |
| 实施日期： | 1996-03-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 12页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 化工 化工机械与设备 化工机械与设备零部件 化工技术 化工设备
【英文标准名称】:StandardGuideforFunctional,Kinematic,andWearAssessmentofTotalDiscProstheses
【原文标准名称】:总脊面假体的功能的、运动学的和磨损的评估标准指南
【标准号】:ASTMF2423-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:F04.25
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:评估;函数;运动学的;总计;磨损
【英文主题词】:intervertebraldiscprosthesis;IVD;spinalimplants;wearassessment;weightlossmethod
【摘要】:Thisguidecanbeusedtodescribethefunction,kinematics,andwearbehaviorofIVDprosthesessubjectedtocyclicloading/motionforrelativelylargenumbersofcycles(forexample,variousdesignsofIVDprostheses,aswellastheeffectsofmaterials,manufacturingtechniquesandotherdesignvariablesononeparticulardesigncanbestudiedusingthisguide).ThisguideisintendedtobeapplicabletoIVDprosthesesthatsupportandtransmitmotionbymeansofanarticulatingjointorbyuseofcompliantmaterials.Ceramics,metals,orpolymers,orcombinationthereof,areusedinIVDprosthesisdesign,anditisthegoalofthisguidetoenableakinematicwearcomparisonofthesedevices,regardlessofmaterialandtypeofdevice.1.1Thisguideisintendedtoprovideguidanceforthefunctional,kinematic,andweartestingoftotaldiscprosthesesand,tothisend,describestestmethodsforassessmentofthewearorfunctionalcharacteristics,orboth,oftotaldiscprostheses.1.2Bothlumbarandcervicalprosthesesareaddressed.1.3Loadandkinematicprofilesforlumbarandcervicaldevicesarenotidenticaland,therefore,areaddressedseparatelyintheguide.1.4Partialdiscreplacements,suchasnucleusreplacementsorfacetjointreplacements,arenotintendedtobeaddressed.1.5Wearisassessedusingaweightlossmethodinatestingmediumasdefinedinthisguide.1.6Thisguideisnotintendedtoaddressanypotentialfailuremodeasitrelatestothefixationoftheimplanttoitsbonyinterfaces.1.7Itistheintentofthisguidetoenablecomparisonofintervertebraldisc(IVD)prostheseswithregardtokinematic,functional,andwearcharacteristicswhentestedunderthespecifiedconditions.Itmustberecognized,however,thattherearemanypossiblevariationsintheinvivoconditions.Asinglelaboratorysimulationwithafixedsetofparametersmaynotbeuniversallyrepresentative.1.8Inorderthatthedatabereproducibleandcomparablewithinandbetweenlaboratories,itisessentialthatuniformproceduresareestablished.Thisguideisintendedtofacilitateuniformmethodsfortestingandreportingofdatafortotaldiscreplacementprostheses.1.9WithoutasubstantialclinicalretrievalhistoryofIVDprostheses,actualloadingprofilesandpatternscannotbedelineatedatthetimeofthewritingofthisguide.Itthereforefollowsthattheloadandmotionconditionsspecifiedbythisguidedonotnecessarilyaccuratelyreproducethoseoccurringinvivo.Rather,themaximumloadsandmotionsspecifiedinthisguiderepresentasevereandthereforeconservativecasefortestingthewearpropertiesofIVDprostheses.Becauseofthis,asubstantiallygreaterrateofwearmayberealizedthanthatwhichmayoccurduringtheroutinedailyactivitiesofatypicalpatient.Itshouldbenoted,however,thatafullcharacterizationofacandidateIVDprosthesisshouldincludetestingunderbothtypicalandextremeconditions.1.10ThevaluesstatedinSIunitsaretoberegardedasthestandardwiththeexceptionofangularmeasurements,whichmaybereportedineitherdegreesorradians.1.11Thisguideisnotintendedtobeaperformancestandard.Itistheresponsibilityoftheuserofthisguidetocharacterizethesafetyandeffectivenessoftheprosthesisunderevaluation.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C35
【国际标准分类号】:11_040_40
【页数】:10P.;A4
【正文语种】:
