SAE J2338 Recommendations of the SAE Task Force on Headlamp Mounting Height
时间:2024-04-30 22:44:54 来源: 标准资料网 作者：标准资料网 阅读：8042
Product Code:SAE J2338
Title:Recommendations of the SAE Task Force on Headlamp Mounting Height
Issuing Committee:Road Illumination Devices Standards Committee
Scope: The Society of Automotive Engineers task force on headlamp mounting height has considered the ramificaitons of reducing the maximum mounting height of headlamps on highway vehicles. The task force has concluded that it is the best interest of the driving public to make a significant reduction in the recommended maximum height at which headlamps, particularly lower beam headlamps, may be mounted. Heights as low as 36 to 40 in (0.9 to 1.0 m) have been considered. New tractor vehicles are in fact being designed with headlamps mounted in this range. Further recommendations were withheld in anticipation of tests to demonstrate the effect of mounting height on the legibility of certain overhead signs.
【英文标准名称】:StandardSpecificationforPolyolefin-BasedPlasticLumberDeckingBoards
【原文标准名称】:聚烯烃基塑料木装饰板的标准规范
【标准号】:ASTMD6662-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.20
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:复合材料;屋顶盖板;规范
【英文主题词】:plasticlumber;plasticdecking;recycledplastics;residentialdecks
【摘要】:1.1Thisspecificationcoverspolyolefin-basedplasticlumberproductsforuseasexteriorresidentialdeckingboards.1.2Plasticlumberproductsarecurrentlymadepredominantlywithrecycledpolyolefinplastics(inparticularhigh-densitypolyethylene)wheretheproductsaremoreorlessnon-homogenousinthecross-section.However,thisspecificationisalsopotentiallyapplicabletosimilarmanufacturedplasticproductsmadefromotherplasticandplasticcompositematerialsthathavenon-homogenouscross-sections.1.3Thisspecificationdetailsaproceduretocalculaterecommendedspanlengthsforspacingofsupportjoists.Thisprocedurewasdevelopedusingexperimentaldatafromatypicalunreinforcedplasticlumbermadepredominantlyfromrecycledhigh-densitypolyethylene.ThemethodologytodevelopspanlengthsforothertypesandcompositionsofplasticlumberisdetailedinAppendixX1ofthisstandard.1.4Thevaluesarestatedininch-poundunits,asthesearecurrentlythemostcommonunitsusedbytheconstructionindustry.EquivalentSIunitsareindicatedinparentheses.However,theunitsstatedforirradianceexposureintheweatherabilitysection(6.3)areinSIunitsasthesearetheunitscommonlyusedfortestingofthistype.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1ThereisnosimilarorequivalentISOStandard.
【中国标准分类号】:Q74
【国际标准分类号】:91_100_99
【页数】:14P.;A4
【正文语种】:
【英文标准名称】:Corrosionprotectionofmetals-Rinsedandnon-rinsedchromateconversioncoatingsonaluminiumandaluminiumalloys.
【原文标准名称】:金属的防腐蚀.经清洗和没有清洗的铝及铝合金上的铬酸盐转化涂层
【标准号】:NFA91-477-2000
【标准状态】:作废
【国别】:法国
【发布日期】:2000-08-01
【实施或试行日期】:2000-08-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:铬酸盐处理;金属覆层;铬涂层;防腐蚀;金属;铝合金;定义;定义;耐腐蚀性;铝;材料试验;覆层;规范(验收)
【英文主题词】:Aluminium;Aluminiumalloys;Chromating;Chromiumcoatings;Coatings;Corrosionprotection;Corrosionresistance;Definition;Definitions;Materialstesting;Metalcoatings;Metals;Specification(approval)
【摘要】:
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:17P;A4
【正文语种】:其他