DD 234-1996 抛光金刚石的分级.术语和分类
时间:2024-05-19 02:31:46 来源: 标准资料网 作者：标准资料网 阅读：9859
【英文标准名称】:Gradingpolisheddiamonds.Terminologyandclassification
【原文标准名称】:抛光金刚石的分级.术语和分类
【标准号】:DD234-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-06-15
【实施或试行日期】:1996-06-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:形状;裂纹;抛光;等级(质量);缺陷与故障;宝石;表面纹理;表面缺陷;分级(质量);夹杂物;术语;金刚石;颜色;重量;珠宝;分类系统
【英文主题词】:preciousstones;grades(quality);surfacetexture;inclusions;terminology;colour;jewellery;defects;diamond;weight(mass);surfacedefects;classificationsystems;flaws;shape;polishing;grading(quality)
【摘要】:Specifiestheterminologyandclassificationtobeusedforthegradinganddescriptionofnatural,unmounted,polisheddiamonds.
【中国标准分类号】:Y88
【国际标准分类号】:01_040_39;39_060
【页数】:22P;A4
【正文语种】:英语
【英文标准名称】:Ships'eyeplates
【原文标准名称】:船用起吊眼板
【标准号】:JISF3410-1995
【标准状态】:作废
【国别】:日本
【发布日期】:1995-03-28
【实施或试行日期】:1995-03-28
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:TechnicalCommitteeonShips
【标准类型】:()
【标准水平】:()
【中文主题词】:海船;起吊眼板
【英文主题词】:eyeplates
【摘要】:
【中国标准分类号】:U22
【国际标准分类号】:47_020_40
【页数】:8P;A4
【正文语种】:日语
【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】: