ASTM D 4779-1993 用紫外线法或过硫酸盐氧化法或同时使用两种方法以及红外线法测定高纯度水中总碳、有机碳和无机碳的标准试验方法

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【英文标准名称】:Methodsoftestfordenseshapedrefractoryproducts.Part2:determinationoftruedensity.
【原文标准名称】:致密异型耐火材料制品的试验方法.第2部分：真密度的测定
【标准号】:NFB40-301-1995
【标准状态】:现行
【国别】:法国
【发布日期】:1995-05-01
【实施或试行日期】:1995-05-05
【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】:Ceramics;Definitions;Densimetry;Density;Densitymeasurement;Determination;Materials;Materialstesting;Measurement;Rawmaterials;Refractories;Refractory;Refractorymaterials;Refractoryproducts;Samplingmethods;Shapedrefractories;Testequipment;Testing
【摘要】:
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:10P.;A4
【正文语种】:其他


【英文标准名称】:PerformanceEvaluationofLaserBasedSphericalCoordinateMeasurementSystems
【原文标准名称】:基于球形坐标测量系统的激光器性能评价
【标准号】:ANSI/ASMEB89.4.19-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006-01-30
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:角形;基础;;组合;比较;坐标测量技术;;坐标系;定义;设计;环境要求;环境试验;评定;;成形;大地测量学;工业的;仪器;激光器;长度测量;测量;仪表;性能;点对点连接;位置;反光;;静态的;测绘;试验;试验;热的;工具;工具;导轨
【英文主题词】:Additionaltests;Angular;Basis;Capability;Combination;Comparison;Coordinatemetrology;Coordinatesystem;Coordinatesystems;Definitions;Design;Environmentalrequirements;Environmentaltesting;Evaluation;Focuses;Forming;Geodesy;Industrial;Instruments;Lasers;Lengthmeasurement;Measurement;Meters;Performance;Point-to-pointconnection;Position;Retroreflecting;Spherical;Static;Surveying;Testing;Tests;Thermal;Tools;Tracks
【摘要】:Prescribesmethodsfortheperformanceevaluationoflaserbasedsphericalcoordinatemeasurementsystemsandprovidesabasisforperformancecomparisonsamongsuchsystems.Definitions,environmentalrequirements,andtestmethodsareincludedwithemphasisonpoint-to-pointlengthmeasurements.Thespecifiedtestmethodsareappropriatefortheperformanceevaluationofamajorityofsuchinstrumentsandarenotintendedtoreplacemorecompleteteststhatmayberequiredforspecialapplications.ThisStandardestablishesrequirementsandmethodsforspecifyingandtestingtheperformanceofaclassofsphericalcoordinatemeasurementsystemscalledlasertrackers1.Alasertrackerisaninstrumentthatdirectsthelightfromarangingdevicetoaretroreflectingtarget(calledaretroreflector)bymeansofatwo-axisrotarysteeringmechanismwhilemonitoringtheangularpositionoftheserotaryaxes,therebyformingasphericalcoordinatemetrologysystem.Suchaninstrumentmaymeasureastatictarget,trackandmeasureamovingtarget,ormeasure(andperhapstrack)somecombinationofstaticandmovingtargets.ThisStandardfocusesspecificallyontheuseoflasertrackersasindustrialmeasurementtoolsratherthantheiruseinsurveyingorgeodesy.Specifiedtestsaredesignedtoevaluatethepoint-to-pointlengthmeasurementcapabilitiesoftheseinstruments.Additionaltestsareincludedwhichevaluatetherangemeasurementcapabilityoflasertrackersequippedwithabsolutedistancemeters(ADMs).Thetestsdonotevaluateworkpiecethermalcompensationcapabilityandarenotsensitivetosphericallymountedretroreflector(SMR)imperfections.
【中国标准分类号】:L51
【国际标准分类号】:17_020
【页数】:
【正文语种】:英语