【英文标准名称】:Slottedsetscrewswithflatpoint.
【原文标准名称】:平端开槽止动螺钉.
【标准号】:NFE25-160-2011
【标准状态】:现行
【国别】:法国
【发布日期】:2011-10-01
【实施或试行日期】:2011-10-14
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acceptancespecification;Chamferedends;Deliveryconditions;Design;Designations;Dimensions;Fasteners;Grubscrews;Materials;Pins(nails);Screws(bolts);Slots;Slottedscrews;Slotted-headfasteners;Specification(approval);Specifications;Surfaces;Threadforms;Threads;Tolerances(measurement);Truncatedcone;Weights
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:11P;A4
【正文语种】:其他
基本信息
| 标准名称： | 加工钛合金用焊硬质合金螺旋刀片数控立铣刀技术条件 |
| 中标分类： |
|
| 发布日期： | 1997-09-23 |
| 实施日期： | 1997-10-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 7页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类：
【英文标准名称】:StandardTestMethodforFieldMeasurementofRaisedRetroreflectivePavementMarkersUsingaPortableRetroreflectometer
【原文标准名称】:使用便携式反射计现场测量凸起的反射路面标记的标准试验方法
【标准号】:ASTME1696-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E12.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:指示器;路面
【英文主题词】:portableretroreflectometers;raisedretroreflectivepavementmarkers;retroreflection
【摘要】:MeasurementsofRImadebythistestmethod,withthe0.2x00B0;observationangle,arerelatedtovisualobservationofraisedretroreflectivepavementmarkersatdistancesofapproximately220m(720ft)forcarsorapproximately440m(1440ft)fortruckswhenilluminatedbytungstenfilamentlightsourcessuchascarheadlights.Therearesomecastingsthatblockvehicleilluminationofaportionofthemarkermountedwithinit.Inthiscase,measuredRIcanbesignificantlylowerthanwhenthemarkerisphotometeredoutsidethecasting,butwillcorrespondtothevisualobservation.Thetestmethodisnotapplicabletoraisedpavementmarkersmountedindepressionscutintothepavement.Thecoefficientofluminousintensityofraisedretroreflectivepavementmarkersdegradeswithtrafficwearandrequiresperiodicmeasurementtoensurethatsufficientvisibilityisprovidedtothedriver.Thequalityofthepavementmarkersastomaterialsused,ageandwearpattern,willhaveaneffectonthecoefficientof(retroreflected)luminousintensity.Theseconditionsneedtobeobservedandnotedbytheuser.1.1Thistestmethodcoversthemeasurementoftheretroreflectivepropertiesofraisedretroreflectivepavementmarkersataprescribedgeometry,bymeansofaportableretroreflectometerthatcanbeusedinthefield.Themeasurementscanbecomparedtominimumrequirementstodeterminetheneedforreplacement.1.2TheobservationanglespecifiedforretroreflectometersinthistestmethodisthatcurrentlyspecifiedforraisedpavementmarkersintheUnitedStatesandmaydifferfromtheanglesusedelsewhere.Forotherjurisdictions,replacetheobservationsanglespecifiedhereinwiththeobservationanglespecifiedbythepertinentagency.1.3Thistestmethodisintendedtobeusedforfieldmeasurementofraisedretroreflectivepavementmarkersbutmayalsobeusedtomeasuretheperformanceofnewmarkersbeforetheyareplacedinthefield.1.4Thistestmethodcoversmeasurementsofraisedpavementmarkersmountedonaroadsurfaceormountedinsnow-plowablemetalcastings.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thestandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P66
【国际标准分类号】:93_080_20
【页数】:4P.;A4
【正文语种】: