NF P99-342-2001 道路信息和控制.道路控制语言.录像机检验和遥控

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Product Code:SAE J602
Title:Headlamp Aiming Device for Mechanically Aimable Headlamp Units (STABILIZED Feb 2011)
Issuing Committee:Road Illumination Devices Standards Committee
Scope:This document applies to the requirements of a device used in the field and inspection stations to aim and check aim of mechanically aimable headlamp units.The purpose of this document is to provide a laboratory test procedure to determine whether the devices under test are capable of accurately positioning headlamp units from their aiming pads and maintaining their accuracy in service within the tolerances designated in this document.【英文标准名称】:StandardTestMethodforEvaluatingtheFreeze-ThawDurabilityofDry-CastSegmentalRetainingWallUnitsandRelatedConcreteUnits
【原文标准名称】:干铸部分挡土砌块及相关混凝土砌块的冻融耐久性评估的标准试验方法
【标准号】:ASTMC1262-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:C15.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorption;compressivestrength;dry-castsegmentalretainingwallunit;freeze-thawdurability;freeze-thawresistance;manufacturedconcreteunits;Absorption;Compressiontesting--cement/concrete;Concretemasonryunits;Durability--buildingmaterial
【摘要】:TheproceduredescribedinthistestmethodisintendedtodeterminetheeffectsoffreezingandthawingonSRWandrelatedunitsinthepresenceofwaterorsalinesolution.Theprocedureisnotintendedtoprovideaquantitativemeasuretodetermineanexpectedlengthofserviceforaspecifictypeofconcreteunit.Note28212;ThetestinglaboratoryperformingthistestmethodshouldbeevaluatedinaccordancewithPracticeC1093.1.1Thistestmethodcoverstheresistancetofreezingandthawingofdry-castsegmentalretainingwall(SRW)units(seeSpecificationC1372)andrelatedconcreteunits.Unitsaretestedinatestsolutionthatiseitherwateror3%salinesolutiondependingontheintendeduseoftheunitsinactualservice.Note18212;Relatedconcreteunitsincludeunitssuchashollowandsolidconcretemasonryunits,concretebrick,andconcreteroofpavers.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P24
【国际标准分类号】:91_080_40
【页数】:5P.;A4
【正文语种】:英语