MIL-A-2550C

作者:标准资料网 时间:2024-05-12 22:47:21   浏览:9083   来源:标准资料网
下载地址: 点击此处下载
MIL-A-2550C, MILITARY SPECIFICATION: AMMUNITION, GENERAL SPECIFICATION FOR (17 NOV 1977) [INTERIM REVISION IN LIEU OF MIL-A-2550B] [NO S/S DOCUMENT]., This specification covers general requirements for all types of ammunition (non-nuclear and nuclear) and all components, propellants, explosives and other supplies used in or in support of ammunition.
下载地址: 点击此处下载
【英文标准名称】:Oilseeds-Simultaneousdeterminationofoilandwatercontents-Methodusingpulsednuclearmagneticresonancespectrometry(ISO10565:1998);GermanversionENISO10565:1998
【原文标准名称】:油料子.油和水分含量的同时测定.脉冲核磁共振谱测定法
【标准号】:DINENISO10565-1998
【标准状态】:现行
【国别】:德国
【发布日期】:1998-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:农产品;植物油;油;含量测定;规范(验收);食品;试验;抽样方法;食品检验;封闭式试验室;实验室试验;含量;核磁共振分光计;分析方法;含水量;计算方法;油料种子;校正
【英文主题词】:
【摘要】:
【中国标准分类号】:B33
【国际标准分类号】:67_200_20
【页数】:9P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforMeasurementofRetroreflectivePavementMarkingMaterialswithCEN-PrescribedGeometryUsingaPortableRetroreflectometer
【原文标准名称】:使用便携式反射仪测量CEN规定几何形状的路面标志反射材料的标准试验方法
【标准号】:ASTME1710-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:符号;试验;涂料;作道路标记;反射材料;材料试验;路面(道路);CEN;后反射;试验方法
【英文主题词】:pavementmarkings;portableretroreflectometers;retroreflection
【摘要】:Thequalityofthestripeisdeterminedbythecoefficientofretroreflectedluminance,RL,anddependsonthematerialsused,age,andwearpattern.Theseconditionsshallbeobservedandnotedbytheuser.Underthesameconditionsofilluminationandviewing,largervaluesofRLcorrespondtohigherlevelsofvisualperformance.Retroreflectivityofpavement(road)markingsdegradewithtrafficwearandrequireperiodicmeasurementtoensurethatsufficientlinevisibilityisprovidedtodrivers.Foragivenviewingdistance,measurementsofRLmadewitharetroreflectometerhavingageometrycorrespondingtothatviewingdistanceareagoodindicatorofthevisualrankingofmaterialmeasured.AsspecifiedbyCEN,themeasurementgeometryoftheinstrumentisbasedonaviewingdistanceof30m,aheadlightmountingheightof0.65mdirectlyoverthestripe,andaneyeheightof1.2mdirectlyoverthestripe.Itshallbetheresponsibilityoftheusertoemployaninstrumenthavingthespecifiedobservationandentranceangles.1.1Thistestmethodcoversmeasurementoftheretroreflectivepropertiesofhorizontalpavementmarkingmaterialscontainingretroreflectingbeads,suchastrafficstripesandsurfacesymbols,usingaportableretroreflectometerthatcanbeplacedontheroaddelineationtomeasuretheretroreflectionataprescribedgeometry.Note1Therestrictiontobeadbasedmaterialsisforthepurposeofensuringasufficientlygradualopticalresponsefunction(frompointsofthesourceaperturetopointsofthereceiveraperture)toallowgeneroussizedinstrumentsourceandreceiverapertures.1.2Theentranceandobservationanglesoftheretroreflectometeraffectthereadings.AsspecifiedbytheEuropeanCommitteeforStandardization(CEN),theentranceandobservationanglesshallbe88.76and1.05,respectively.1.3Thistestmethodisintendedtobeusedforfieldmeasurementofpavementmarkingsbutmaybeusedtomeasuretheperformanceofmaterialsonsamplepanelsbeforeplacingthemarkingmaterialinthefield.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P66
【国际标准分类号】:93_080_20
【页数】:6P.;A4
【正文语种】: