DIN EN 942-2007 细木制作用木材.一般要求

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【英文标准名称】:Timberinjoinery-GeneralrequirementsEnglishversionofDINEN942:2007-06
【原文标准名称】:细木制作用木材.一般要求
【标准号】:DINEN942-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:外观;特性;分类;缺陷;定义;细木制作;细木制作用木材;木节;测量;修补;潮气;顺序示度;性能;质量;检修;规范(验收);建筑用木材;木材型号;木材;木材加工
【英文主题词】:Appearance;Characteristics;Classification;Classifications;Defects;Definition;Definitions;Joinery;Joinerytimber;Knots;Measurement;Mending;Moisture;Orderindications;Properties;Quality;Repair;Specification(approval);Structuraltimber;Typeoftimber;Wood;Woodworking
【摘要】:ThisEuropeanStandardspecifiesthegeneralrequirementsincludinginparticularthegradingandclassificationbyappearancequalityoftimberinjoineryproductsorindividualjoineryparts.ThisEuropeanStandardisintendedtobeusedatthetimeofmanufactureofaproduct.HowererthisStandaremaybeusedtoevaluateproductsatalaterstage,butinthesesituationsstorageandserviceconditions,subsequenttomanufacture,shallbetakenintoaccount(surfacechecks).WhereEuropeanStandardcoverssolid,finger-jointed,end-jointed,edge-jointedandlaminatedtimberproducts.MattersrelatingtotheinfluenceoftimbercharacteristicsonstrengthanddurabilityarenotcoveredinthisStandard.
【中国标准分类号】:B68
【国际标准分类号】:79_040
【页数】:25P.;A4
【正文语种】:英语

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【英文标准名称】:Methodsofmeasurementforequipmentusedindigitalmicrowaveradiotransmissionsystems-Measurementsonterrestrialradio-relaysystems-Adaptiveequalizer
【原文标准名称】:数字微波无线电传输系统使用设备的测量方法.地面无线电中继系统的测量.自适应均衡器
【标准号】:BSEN60835-2-8-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-02-15
【实施或试行日期】:1996-02-15
【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】:数字信号;试验设备;无线电设备;无线电通信;量值继电器;无线电通信链路;通信链路;均衡器;通信设备;电学测量;性能试验;微波链路;自调节系统;电路
【英文主题词】:Adaptiveequalizers;Broadcastengineering;Digital;Digitalengineering;Digitalsignals;Earthstations;Electricalengineering;Equalisers;Measurement;Measuringtechniques;Methodsformeasuring;Microwavelinks;Microwaves;Radioengineering;Radioequipment;Radiolinksystems;Radiolinks;Radioplants;Radiosystems;Radiofrequencies;Radiolocationequipment;Radio-relaysystems;Radiotelegraphy;Signaltransmission;Terrestrial;Transmission;Transmissionperformance
【摘要】:ThissectionofIEC835-2dealswithmeasurementspertainingtotheadaptiveequalizersusedindigitalmicrowaveradio-relaysystems.Thesemeasurementsareintendedtocharacterizethesystemequalizerinthepresenceofselectivefadingandmayalsobeperformedonsystemswithoutadaptiveequalizers.Totakeaccountofthosepropertiesofthesystemwhichareespeciallyinfluencedbytheuseoffrequencyand/ortimedomainequalizers,theresultsofmeasurementsperformedonthesystemarepresentedbyso-calledsignatures.Additionalmeasurementsprovidefurthermeanstocharacterizetheperformanceofthesystem.
【中国标准分类号】:M35;M38
【国际标准分类号】:33_060_30
【页数】:30P.;A4
【正文语种】:英语

Product Code:SAE J1647
Title:Plastic Materials and Coatings for Use in Or on Optical Parts Such as Lenses and Reflectors of High-Intensity Discharge Forward Lighting Devices Used in Motor Vehicles
Issuing Committee:Lighting Materials Standards Committee
Scope:This SAE Recommended Practice provides test methods and requirements to evaluate the suitability of plastic optical materials for possible use in discharge forward lighting (DFL) devices in motor vehicles. These materials are typically used for lenses and reflectors. Separate testing is required for each combination of material, industrial coating, DFL light source, and device focal length. The tests are intended to determine physical and optical characteristics of the materials and coatings. Performance expectations of finished assemblies, including plastic components, are to be based on tests for lighting devices, as specified in SAE Standards and Recommended Practices for motor vehicle lighting equipment. Optical components exposed to weathering should also be subject to SAE J576.