IEC 60756-1991 非广播用磁带录像机时基稳定性
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【英文标准名称】:Non-broadcastvideotaperecorders;timebasedstability
【原文标准名称】:非广播用磁带录像机时基稳定性
【标准号】:IEC60756-1991
【标准状态】:现行
【国别】:国际
【发布日期】:1991-04
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:视频记录;时间;稳定性;磁带录像机
【英文主题词】:Electricalengineering;Magneticrecorders;Magneticrecording;Measurement;Ratings;Recording;Recordingengineering;Recordingequipment;Reproductions;Searchfunction;Signaltransmission;Slowmotion;Stability;Synchronizingsignals;Time;Timebasestability;Variations;Videorecording;Videorecordingsystems;Videotaperecorders
【摘要】:Specifiesthetimebaseerrorsofthemonochromeaswellasofthecolourcompositevideosignalreproducedfromtwoheadhelical-scandomesticvideorecorders.Givescharacteristicsandmaximumvaluesofthetimebaseerrors.
【中国标准分类号】:M71
【国际标准分类号】:33_160_40
【页数】:21P.;A4
【正文语种】:英语
【英文标准名称】:StandardSpecificationforChlorinatedPoly(VinylChloride)(CPVC)PlasticHot-andCold-WaterDistributionSystems
【原文标准名称】:热水和冷水配水系统的氯化聚氯乙烯(CPVC)塑料的标准规格
【标准号】:ASTMD2846/D2846M-2009be1
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:F17.61
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:冷水管;氯化聚氯乙烯(CPVC)管道;热水管;配水管;循环
【英文主题词】:cold-waterpipe;CPVCpiping;hot-waterpipe;waterdistributionpiping;Cycling
【摘要】:1.1Thisspecificationcoversrequirements,testmethods,andmethodsofmarkingforchlorinatedpoly(vinylchloride)plastichot-andcold-waterdistributionsystemcomponentsmadeinonestandarddimensionratioandintendedforwaterserviceuptoandincluding180x00B0;F(82x00B0;C).Thesecomponentscomprisepipeandtubing,socket-typefittings,streetfittings,plastic-to-metaltransitionfittings,solventcements,andadhesives.Requirementsandmethodsoftestareincludedformaterials,workmanship,dimensionsandtolerances,hydrostaticsustainedpressurestrength,andthermocyclingresistance.Thecomponentscoveredbythisspecificationareintendedforuseinresidentialandcommercial,hotandcold,potablewaterdistributionsystems.1.2Theproductscoveredbythisspecificationareintendedforusewiththedistributionofpressurizedliquidsonly,whicharechemicallycompatiblewiththepipingmaterials.Duetoinherenthazardsassociatedwithtestingcomponentsandsystemswithcompressedairorothercompressedgasessomemanufacturersdonotallowpneumatictestingoftheirproducts.Consultwithspecificproduct/componentmanufacturersfortheirspecifictestingprocedurespriortopneumatictesting.Note18212;Pressurized(compressed)airorothercompressedgasescontainlargeamountsofstoredenergywhichpresentserioussafteyhazardsshouldasystemfailforanyreason.1.3Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.Note28212;Suggestedhydrostaticdesignstressesandhydrostaticpressureratingsforpipe,tubing,andfittingsarelistedinAppendixX1.Design,assembly,andinstallationconsiderationsarediscussedinAppendixX2.Anoptionalperformancequalificationandanin-plantqualitycontrolprogramarerecommendedinAppendixX3.1.5Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodportion,Sections9and10,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q81
【国际标准分类号】:23_040_20
【页数】:12P.;A4
【正文语种】:
Product Code:SAE AS5173
Title:Fitting, Bushing, Port Reducer
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.
