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【英文标准名称】:TransmissionandMultiplexing(TM)-Genericrequirementsforsynchronizationnetworks-Part3-1:thecontrolofjitterandwanderwithinsynchronizationnetworks.
【原文标准名称】:传输和多路转换(TM).同步网的一般要求.第3-1部分:同步网内抖动和飘动的控制
【标准号】:NFZ85-462-3-1-2000
【标准状态】:现行
【国别】:法国
【发布日期】:2000-06-01
【实施或试行日期】:2000-06-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Abbreviations;Circuitnetworks;Communicationnetworks;Communicationtechnology;Configuration;Control;Dataprocessing;Datatransfer;Definitions;ETSI;Illustrations;Informationprocessing;Jitter;Mathematicalcalculations;Multiplex;Multiplexing;Signaltransmission;Specification(approval);Synchronization;Synchronizingsignals;Telecommunication;Telecommunicationnetworks;Telecommunicationsystems;Telecommunications;Telephonenetworks;Terminology;Transmissionsystems;Transmissiontechnique
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_040_20
【页数】:23P.;A4
【正文语种】:其他


【英文标准名称】:StandardPracticeforSteelCastings,Welding,QualificationsofProceduresandPersonnel
【原文标准名称】:钢铸件焊接规程和工作人员的合格鉴定的标准规程
【标准号】:ASTMA488/A488M-2010
【标准状态】:现行
【国别】:
【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】:A01.18
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:合格;钢铸件;焊接
【英文主题词】:qualifications;steelcastings;welding;Steelcastings
【摘要】:1.1Thispracticecoversthequalificationofprocedures,welders,andoperatorsforthefabricationandrepairofsteelcastingsbyelectricarcwelding.1.1.1QualificationsofaprocedureandeitherorboththeoperatororwelderunderSectionIXoftheASMEBoilerandPressureVesselCodeshallautomaticallyqualifytheprocedureandeitherorboththeoperatororwelderunderthispractice.P-numberdesignationsintheASMEgroupingofbasemetalsforqualificationmaybedifferentthanthecategorynumberslistedinTable1.RefertoAppendixX1foracomparisonofASTMcategorynumberswiththecorrespondingASMEP-Numberdesignations.1.2Eachmanufacturerorcontractorisresponsiblefortheweldingdonebyhisorganizationandshallconductthetestsrequiredtoqualifyhisweldingprocedures,welders,andoperators.1.3Eachmanufacturerorcontractorshallmaintainarecordofweldingprocedurequalificationtests(Fig.1),welderoroperatorperformancequalificationtests(Fig.2),andweldingprocedurespecification(Fig.3),whichshallbemadeavailabletothepurchaser''srepresentativeonrequest.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4.1SIUnits8212;Withinthetext,theSIunitsareshowninbrackets.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J33
【国际标准分类号】:25_160_10;25_160_01
【页数】:18P.;A4
【正文语种】: