ASTM D 3863-1987 评定微生物水质的常规过滤程序用0.4微米到0.45微米薄膜过滤器滞留特性的标准试验方法
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来源:标准资料网
【英文标准名称】:StandardTestMethodforRetentionCharacteristicsof0.40to0.45-&*181mMembraneFiltersUsedinRoutineFiltrationProceduresfortheEvaluationofMicrobiologicalWaterQuality
【原文标准名称】:评定微生物水质的常规过滤程序用0.4微米到0.45微米薄膜过滤器滞留特性的标准试验方法
【标准号】:ASTMD3863-1987
【标准状态】:现行
【国别】:美国
【发布日期】:1987
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:过滤器;试验;质量;特性;评定;微生物分析;水;膜过滤器;水质;薄膜材料
【英文主题词】:water;filters;waterquality;quality;microbiologicalanalysis;membranes;testing;properties;evaluations;membranefilters
【摘要】:
【中国标准分类号】:Z16
【国际标准分类号】:07_100_20
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:Acoustics-Determinationofsoundimmissionfromsoundsourcesplacedclosetotheear-Part2:Techniqueusingamanikin
【原文标准名称】:声学.从接近耳朵的声源处测定声排放强度.第2部分:利用人体模型技术
【标准号】:ISO11904-2-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-11
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:护耳器;实验室试验;测量仪器;传声器;电气工程;噪声辐射;测量不确定度;试验标样;测量技术;声级;定义;试验;声学;人体模型;耳机;耳模拟器;耳;测量;混响室;声学测量;危害;听觉;声压级;头戴送受话器;听力损害;声源;电声器件;噪声(环境的);性能;插入式耳机;声强;电声学;听力试验;声传输
【英文主题词】:Acousticmeasurement;Acoustics;Acoustoelectricdevices;Airpollution;Calibration;Definitions;Earprotectors;Earsimulators;Earphones;Ears;Electricalengineering;Electroacoustics;Environment;Environmentalcondition;Hazards;Headphones;Hearing(auditoryperception);Hearingimpairment;Hearingtests;Insertearphones;Laboratorytesting;Laboratorytests;Manikins;Measurement;Measuringincertainity;Measuringinstruments;Measuringtechniques;Microphones;Noise;Noise(environmental);Noiseimmisions;Noiseimmission;Performance;Reverberationrooms;Simulators;Sound;Soundfields;Soundintensity;Soundlevels;Soundpressurelevel;Soundsources;Soundtransmission;Testdummies;Testing;Workingplaces
【摘要】:ThispartofISO11904specifiesbasicframeworkmeasurementmethodsforsoundimmissionfromsoundsourcesplacedclosetotheear.Thesemeasurementsarecarriedoutwithamanikin,equippedwithearsimulatorsincludingmicrophones.Themeasuredvaluesaresubsequentlyconvertedintocorrespondingfree-fieldordiffuse-fieldlevels.Theresultsaregivenasfree-fieldrelatedordiffuse-fieldrelatedequivalentcontinuousA-weightedsoundpressurelevels.Thetechniqueisdenotedthemanikintechnique.ThispartofISO11904isapplicabletoexposuretosoundfromsourcesclosetotheear,forexampleduringequipmenttestsorattheworkplacetosoundfromearphonesorhearingprotectorswithaudiocommunicationfacilities.ThispartofISO11904isapplicableinthefrequencyrangefrom20Hzto10kHz.Forfrequenciesabove10kHz,ISO11904-1canbeused.
【中国标准分类号】:L31;A42
【国际标准分类号】:17_140_01
【页数】:16P;A4
【正文语种】:英语
Product Code:SAE J336
Title:Sound Level for Truck Cab Interior
Issuing Committee:Truck And Bus Total Vehicle Steering Committee
Scope:This SAE Recommended Practice describes the equipment and procedure for determining the truck cab interior sound level over the upper half of the engine speed range. This practice applies to motor trucks and truck-tractors and does not include construction and industrial machinery.
