NF Q50-008-2-2003 纸浆.实验室打浆.第2部分:PFI碾磨法
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来源:标准资料网
【英文标准名称】:Pulps-Laboratorybeating-Part2:PFImillmethod.
【原文标准名称】:纸浆.实验室打浆.第2部分:PFI碾磨法
【标准号】:NFQ50-008-2-2003
【标准状态】:作废
【国别】:法国
【发布日期】:2003-05-01
【实施或试行日期】:2003-05-20
【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】:Energyconsumption;Grindability;Grinding(sizereduction);Laboratoryequipment;Laboratorytesting;Materialstesting;Measurement;Millingequipment(agriculture);Mills;Paper;Papermills;Paperpulp;Pulp;Refineries;Semi-finishedproducts;Sizereduction;Specimenpreparation;Testing
【摘要】:
【中国标准分类号】:Y31
【国际标准分类号】:85_040
【页数】:19P.;A4
【正文语种】:其他
Product Code:SAE AMS3306
Title:Rubber, Silicone 1200 psi (8.27 MPa), High Modulus 55-65
Issuing Committee:Ams Ce Elastomers Committee
Scope:【英文标准名称】:Soundsystemequipment-Part4:Microphones
【原文标准名称】:声系统设备.第4部分:传声器
【标准号】:IEC60268-4-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-06
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:电声器件;波幅;分类;畸变系数;动力学;电声学;环境条件;频率曲线;频率响应;阻抗;影响量;作标记;测量;测量技术;传声器;自然噪声压;噪声;非线性;使用条件;参数;性能;基准线;基准曲线;声压;声压级;声传输;对称;测试;转换系数;传输装置;传输系统;电压测量
【英文主题词】:Acoustoelectricdevices;Amplitude;Classification;Distortionfactors;Dynamics;Electroacoustics;Environmentalcondition;Frequencycurve;Frequencyresponse;Impedance;Influencequantity;Marking;Measurement;Measuringtechniques;Microphones;Naturalnoisevoltage;Noise;Non-linearity;Operatingconditions;Parameters;Properties;Referenceaxes;Referencecurve;Soundpressure;Soundpressurelevel;Soundtransmission;Symmetry;Testing;Transfercoefficient;Transmissiondevices;Transmissionsystems;Voltagemeasuring
【摘要】:ThispartofIEC60268specifiesmethodsofmeasurementfortheelectricalimpedance,sensitivity,directionalresponsepattern,dynamicrangeandexternalinfluencesofsoundsystemmicrophones,andalsodetailsthecharacteristicstobespecifiedbythemanufacturer.Itappliestosoundsystemmicrophonesforallapplicationsforspeechandmusic.Itdoesnotapplytomeasurementmicrophones,butitdoesapplytoeachaudiochannelofmicrophoneshavingmorethanonechannel,forexampleforstereoorsimilaruse.Itisalsoapplicabletoflush-mountedmicrophonesandtotheanaloguecharacteristicsofmicrophoneswithdigitalaudiooutput.ForthepurposesofthisInternationalStandard,amicrophoneincludesallsuchdevicesastransformers,pre-amplifiers,orotherelementsthatformanintegralpartofthemicrophone,uptotheoutputterminalsspecifiedbythemanufacturer.NOTEThecharacteristicsspecifiedinthisstandarddonotcompletelydescribethesubjectiveresponseofthemicrophone.Furtherworkisnecessarytofindnewdefinitionsandmeasurementproceduresforalaterreplacementbyobjectivecharacteristicsofatleastsomeofthesubjectivedescriptionsusedtodescribemicrophoneperformance.
【中国标准分类号】:M72
【国际标准分类号】:33_160_50
【页数】:54P;A4
【正文语种】:英语
