EJ/T 1132-2001 钴-57泛源

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【英文标准名称】:Testforcomperativeflammabilityofliquids
【原文标准名称】:液体易燃性的比较试验
【标准号】:UL340-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993-06
【实施或试行日期】:
【发布单位】:美国保险商实验所(UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:试验规程;易燃性;火焰表面传播;液体;试验;比较程序
【英文主题词】:liquids;comparativeprocesses;testprocedures;testing;surfacespreadofflame;flammability
【摘要】:
【中国标准分类号】:A80
【国际标准分类号】:13_220_40
【页数】:19P;A4
【正文语种】:英语


Product Code:SAE J2738
Title:Improved Roadway Illumination: Information Resource
Issuing Committee:Road Illumination Devices Standards Committee
Scope:Headlamps should illuminate the traffic scene ahead of the vehicle in such a way that the driver can operate the vehicle safely and in a relaxed manner. At the same time, negative effects on drivers of other vehicles, pedestrians and other people should be minimized. Various technical parameters such as beam pattern, mounting height, headlamp aiming, and source spectrum can be tuned to find the necessary compromise. The physiology of the vision system under specific night time conditions strongly influences these factors and how headlamps can be best optimized for visibility and comfort. The SAE Improved Roadway Illumination task force collected and reviewed relevant research on these topics. This document is a comprehensive summary of this information. The goal is to enable lighting experts, advocacy groups, and non-experts (journalists, consumer organizations, car drivers) to better understand the benefits and tradeoffs of improved roadway lighting with modern headlamp technology. It should be noted that all studies can not be included in this report, but the intent of this document is to provide the reader with a representative sample of the existing research as a starting point. Further, this document can be updated in the future to reflect new research findings.