ASTM D 2467-1992 套节型聚氯乙烯(PVC)塑料管配件.附表80
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来源:标准资料网
【英文标准名称】:Socket-TypePoly(VinylChloride)(PVC)PlasticPipeFittings,Schedule80
【原文标准名称】:套节型聚氯乙烯(PVC)塑料管配件.附表80
【标准号】:ASTMD2467-1992
【标准状态】:作废
【国别】:美国
【发布日期】:1992
【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】:管;建筑;塑料;塑料管;塑料制品;聚氯乙烯
【英文主题词】:pipes;plasticpipes;construction;plastics;plasticsproducts;polyvinylchloride
【摘要】:
【中国标准分类号】:G33
【国际标准分类号】:83_080_20
【页数】:6P;A4
【正文语种】:英语
【英文标准名称】:Opticalfibres-Measurementmethodsandtestprocedures-Differentialmodedelay
【原文标准名称】:光学纤维.测量方法和试验规程.模时延差
【标准号】:BSEN60793-1-49-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-12-15
【实施或试行日期】:2003-12-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;分类;测量;质量保证;包络延时;多模光纤;定义;特性;光波导;尺寸;电气工程;光电子学;规范;设计;单模纤维
【英文主题词】:
【摘要】:ThispartofIEC60793describesamethodforcharacterizingthemodalstructureofagraded-indexmultimodefibre.Thisinformationisusefulforassessingthebandwidthperformanceofafibrewhenusedwithlasersources.Withthismethod,theoutputfromafibrethatissingle-modeatthetestwavelengthexcitesthemultimodefibreundertest.Theprobespotisscannedacrosstheendfaceofthefibreundertest,andtheopticalpulsedelayisdeterminedatspecifiedoffsetpositions.Thedifferenceinopticalpulsedelaytimebetweenthefastestandslowestmodesofthefibreundertestisdetermined.Theuserspecifiestheupperandlowerlimitsofradialoffsetpositionsoverwhichtheprobefibreisscannedinordertospecifydesiredlimitsofmodalstructure.Thisstandardappliesonlytomultimode,graded-indexglass-core(categoryA1)fibres.Thetestmethodiscommonlyusedinproductionandresearchfacilities,butisnoteasilyaccomplishedinthefield.
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:22P;A4
【正文语种】:英语
MIL-C-19836B, MILITARY SPECIFICATION: COOLERS, FLUID, INDUSTRIAL, AIR, MOTOR AND GENERATOR, NAVAL SHIPBOARD (23 MAR 1988)., This specification covers air coolers for motors, generators and similar electrical equipment for Naval shipboard application. These coolers commonly for part of the water-air-cooled enclosures built in conformance with MIL-E-2036.
