EN ISO 28439-2011 工作场所环境.极细微气溶胶/纳米气溶胶特征描述.利用微分电气流动分析系统进行粒度分布和计数浓度测定(ISO28439-2011).德文版本ENISO28439-2011

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【英文标准名称】:Workplaceatmospheres-Characterizationofultrafineaerosols/nanoaerosols-Determinationofthesizedistributionandnumberconcentrationusingdifferentialelectricalmobilityanalysingsystems(ISO28439:2011);GermanversionENISO28439:2011
【原文标准名称】:工作场所环境.极细微气溶胶/纳米气溶胶特征描述.利用微分电气流动分析系统进行粒度分布和计数浓度测定(ISO28439-2011).德文版本ENISO28439-2011
【标准号】:ENISO28439-2011
【标准状态】:现行
【国别】:
【发布日期】:2011-07
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:气溶胶;空气;大气污染;空气质量;分析;环境;环境污染物;特性记述;化学成分;化学性质;化合物;浓缩;浓度(化学);危险物质;危险的可裂变物质;定义(术语);测定;排放测量;工作环境;环境条件;评定;曝光;罚款;危害;保健;吸入空气;测量;测量不确定度;测量技术;测量方法;计量学;职业安全性;颗粒;污染物浓度;污染物质;空气污染;性能;安全性工程;规范(验收);分光计;光谱测定法;测量策略;试验;工作物质;工作场所浓度;工作地点;工作场所安全性;可及区
【英文主题词】:Aerosols;Air;Airpollution;Airquality;Analysis;Atmosphere;Atmosphericpollutants;Characterisations;Chemicalcomposition;Chemicalproperties;Chemicals;Concentration;Concentration(chemical);Dangerousmaterials;Dangerousstuffs;Definitions;Determination;Emissionmeasurement;Environment(working);Environmentalcondition;Evaluations;Exposure;Fine;Hazards;Healthprotection;Inhaledair;Measurement;Measuringincertainity;Measuringtechniques;Methodsformeasuring;Metrology;Occupationalsafety;Particles;Pollutantconcentration;Pollutants;Pollutionoftheair;Properties;Safetyengineering;Specification(approval);Spectrometers;Spectrometry;Strategyofmeasurement;Testing;Workingmaterials;Workingplaceconcentration;Workingplaces;Workplacesafety;Zonesofreach
【摘要】:
【中国标准分类号】:C70
【国际标准分类号】:13_040_30
【页数】:21P.;A4
【正文语种】:英语

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上一篇: EN ISO 5364-2011 麻醉和呼吸设备.口咽导气管(ISO5364-2008).德文版本ENISO5364-2011
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【英文标准名称】:Advancedtechnicalceramics.Mechanicalpropertiesofceramicfibresathightemperatureinanon-reactiveenvironment.Determinationofcreepbehaviourbythecoldendmethod
【原文标准名称】:高级工业陶瓷.无化学反应的高温条件下陶瓷纤维的机械性能.冷端法测定蠕变性能
【标准号】:BSEN15365-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2010-08-31
【实施或试行日期】:2010-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高级工业陶瓷;陶瓷纤维;陶瓷;长度变化;复合材料;蠕变;蠕变性能;蠕变试验;缺陷与故障;定义(术语);测定;延伸;高温;解释;材料测试;机械性能;方法;特性;抗拉测试;试样;测试;测试条件
【英文主题词】:Advancedtechnicalceramics;Ceramicfibres;Ceramics;Changeoflength;Compositematerials;Creep;Creepbehaviour;Creeptest;Defects;Definitions;Determination;Elongation;Hightemperatures;Interpretations;Materialstesting;Mechanicalproperties;Methods;Properties;Tensiletesting;Testspecimens;Testing;Testingconditions
【摘要】:ThisEuropeanStandardspecifiestheconditionsforthedeterminationofthetensilecreepdeformationandfailurebehaviourofsinglefilamentsofceramicfibresathightemperatureandundertestconditionsthatpreventchangestothematerialasaresultofchemicalreactionwiththetestenvironment.ThisEuropeanStandardappliestocontinuousceramicfilamentstakenfromtows,yarns,braidsandknittings,whichhavestrainstofracturelessthanorequalto5%.
【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:22P.;A4
【正文语种】:英语

Product Code:SAE J2071
Title:Aerodynamic Testing of Road Vehicles--Open Throat Wind Tunnel Adjustment
Issuing Committee:Road Vehicle Aerodynamics Forum Committee
Scope: As a simulation of road driving, wind tunnel testing of full-size vehicles produces certain errors in the aerodynamic forces, aerodynamic moments, and surface pressures. The magnitude of these errors, in general, depends on the following: a.) Flow quality, b.) Determination of the reference dynamic pressure, c.) Wind tunnel floor boundary layer, d.) Test section geometry and position of the car within that geometry, e.) Shape of the vehicle, f.) Blockage ratio: The ratio of the cross-sectional area of the vehicle to the cross-sectional area of the wind tunnel nozzle, g.) Wheel rotation, and h.) Internal flow in the model. The SAE Standards Committee, Open Throat Wind Tunnel Adjustments, had as a goal to document the knowledge of the influence of model interference on wind tunnel test results for automotive open jet wind tunnels. This document contains the following information related to this subject: a.) Design data of open throat wind tunnels, b.) A summary of published and unpublished test data, c.) Documentation and theoretical explanation of various blockage correction procedures for automotive tests, d.) Critical evaluation of blockage correction procedures, especially in relation to other influences, such as test section geometry, position of the car, floor boundary layer, etc., and e.) Recommendation of a calibration procedure to determine the effect of blockage and other influences in each individual wind tunnel.
Rationale: As a simulation of road driving, wind tunnel testing of full-size vehicles produces certain errors in the aerodynamic forces, aerodynamic moments, and surface pressures. The magnitude of these errors, in general, depends on the following: a.) Flow quality, b.) Determination of the reference dynamic pressure, c.) Wind tunnel floor boundary layer, d.) Test section geometry and position of the car within that geometry, e.) Shape of the vehicle, f.) Blockage ratio: The ratio of the cross-sectional area of the vehicle to the cross-sectional area of the wind tunnel nozzle, g.) Wheel rotation, and h.) Internal flow in the model. The SAE Standards Committee, Open Throat Wind Tunnel Adjustments, had as a goal to document the knowledge of the influence of model interference on wind tunnel test results for automotive open jet wind tunnels. This document contains the following information related to this subject: a.) Design data of open throat wind tunnels, b.) A summary of published and unpublished test data, c.) Documentation and theoretical explanation of various blockage correction procedures for automotive tests, d.) Critical evaluation of blockage correction procedures, especially in relation to other influences, such as test section geometry, position of the car, floor boundary layer, etc., and e.) Recommendation of a calibration procedure to determine the effect of blockage and other influences in each individual wind tunnel.