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MIL-L-7830D

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MIL-L-7830D, MILITARY SPECIFICATION, LIGHT ASSEMBLY, MARKER, AIRCRAFT OBSTRUCTION (15 SEP 83)., This specification covers the requirements for an aircraft obstruction marker light assembly.
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【英文标准名称】:Environmentaltesting-Part2-27:Tests-TestEaandguidance-Shock
【原文标准名称】:环境试验.第2-27部分:试验.试验Ea和导则.冲击
【标准号】:BSEN60068-2-27-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-07-31
【实施或试行日期】:2009-07-31
【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】:加速度;保用期服务;元部件;定义(术语);动态试验;电连接;电气工程;电学;环境;环境测试;指导手册;冲击测试;材料测试;测量;机械测试;温湿度预调节;准备;冲击;冲击试验;规范(验收);活页规范;应力;测试;试验装置
【英文主题词】:Acceleration;Aftercare;Components;Definitions;Dynamictesting;Electricconnection;Electricalengineering;Electricity;Environment;Environmentaltesting;Guidebooks;Impacttests;Materialstesting;Measurement;Mechanicaltesting;Preconditioning;Preparation;Shock;Shocktests;Specification(approval);Specificationsheets;Stress;Testing;Testingdevices
【摘要】:ThispartofIEC60068providesastandardprocedurefordeterminingtheabilityofaspecimentowithstandspecifiedseveritiesofnon-repetitiveorrepetitiveshocks.Thepurposeofthistestistorevealmechanicalweaknessand/ordegradationinspecifiedperformances,oraccumulateddamageordegradationcausedbyshocks.Inconjunctionwiththerelevantspecification,thismaybeusedinsomecasestodeterminethestructuralintegrityofspecimensorasameansofqualitycontrol(seeClauseA.2).Thistestisprimarilyintendedforunpackagedspecimensandforitemsintheirtransportcasewhenthelattermaybeconsideredtobepartofthespecimen.Ifanitemistobetestedunpackaged,itisreferredtoasatestspecimen.However,iftheitemispackaged,thentheitemitselfisreferredtoasaproductandtheitemanditspackagingtogetherarereferredtoasatestspecimen.WhenusedinconjunctionwithIEC60068-2-47,thisstandardmaybeusedfortestingpackagedproducts.Thispossibilitywasincludedinthe2005versionofIEC60068-2-47forthefirsttime.Thisstandardiswrittenintermsofprescribedpulseshapes.GuidancefortheselectionandapplicationofthesepulsesisgiveninAnnexAandthecharacteristicsofthedifferentpulseshapesarediscussedinAnnexB.Whereverpossible,thetestseverityandtheshapeoftheshockpulseappliedtothespecimenshouldbesuchastoreproducetheeffectsoftheactualtransportoroperationalenvironmenttowhichthespecimenwillbesubjected,ortosatisfythedesignrequirementsiftheobjectofthetestistoassessstructuralintegrity(seeClausesA.2andA.4).Forthepurposesofthistest,thespecimenisalwaysmountedtothefixtureorthetableoftheshocktestingmachineduringtesting.Oneoftheresponsibilitiesofatechnicalcommitteeis,whereverapplicable,tomakeuseofbasicsafetypublicationsinthepreparationofitspublications.
【中国标准分类号】:K04
【国际标准分类号】:19_040
【页数】:44P.;A4
【正文语种】:英语


【英文标准名称】:Aerospaceseries-Holesformetricthreadedfasteners-Designstandard
【原文标准名称】:航空航天系列.米制螺纹紧固件的孔.设计标准
【标准号】:BSEN3201-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-05-30
【实施或试行日期】:2008-05-30
【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】:航空航天运输;航空运输;出砂孔;设计标准;尺寸;紧固件;孔径;孔;米制的;米制螺纹;通孔;螺钉连接件;航天运输;螺纹;位置公差
【英文主题词】:Aerospacetransport;Airtransport;Clearanceholes;Designstandards;Dimensions;Fasteners;Holesize;Holes;Metric;Metricscrewthreads;Registrationhole;Screwedjoints;Spacetransport;Threads;Tolerancesofposition
【摘要】:Thisstandardprovidesparticularsofholesizes,chamferdimensionsandpositionaltolerancestosuitmetricthreadedfastenerswithnominaldiametersof3mmto20mm.
【中国标准分类号】:V20
【国际标准分类号】:49_030_01
【页数】:14P.;A4
【正文语种】:英语