【英文标准名称】:Electricalandpneumaticanaloguechartrecordersforuseinindustrial-processcontrolsystems-Methodsforperformanceevaluation
【原文标准名称】:工业过程控制系统用电动和气动模似图表记录仪.性能评定方法
【标准号】:BSEN60873-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-04-28
【实施或试行日期】:2004-04-28
【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】:
【英文主题词】:
【摘要】:ThispartofIEC60873providesmethodsfordeterminingtheperformanceofallelectricalandpneumaticanaloguechartrecordersoperatingfromastandardizedsignalwhichmaybeusedinprocesscontrol.Itisintendedthatcontinuousanddotted-linetraces,multiple-penandmultiple-channelinstrumentsshouldbecovered.Sometestsshouldnotapplytoallinstrumentsandadditionaltestsmayberequiredforcertaintypesofrecorders.Theobjectofthisstandardistospecifyuniformmethodsoftestfortheevaluationoftheperformanceofelectricalandpneumaticanaloguechartrecordersoperatingfromastandardizedsignalwhichmaybeusedinprocesscontrol.Whenafullevaluationinaccordancewiththisstandardisnotrequired,thosetestswhicharerequiredshouldbeperformedandtheresultsreportedinaccordancewiththosepartsofthestandardwhicharerelevant.Itshouldbemadeclearinsuchareportthattheevaluationreportedisnotafullevaluationandthepartsomittedshouldbeindicated.
【中国标准分类号】:N18
【国际标准分类号】:25_040_99
【页数】:20P;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.
Rationale: 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.