MIL-I-8500D
时间:2024-05-22 15:51:00 来源: 标准资料网 作者：标准资料网 阅读：9021
MIL-I-8500D, MILITARY SPECIFICATION: INTERCHANGEABILITY AND REPLACEABILITY OF COMPONENT PARTS FOR AEROSPACE VEHICLES (25 MAR 1980)., This specification establishes the dimensional interchangeability and replaceability requirements for certain parts, subassemblies, assemblies, units, sets, and installation provisions for aerospace vehicles (see 6.1), as listed herein, and which are controlled items as defined in paragraph 6.2.2.
【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Surveymethodusinganenvelopingmeasurementsurfaceoverareflectingplane(ISO3746:1995,includingCor1:1995);EnglishversionofDINENISO3746:2009-11
【原文标准名称】:声学.声压法测定噪声源声功率级使用标准声源简易法,通过密封测量表面参考反射面的方式测得(ISO3746:1995,包括勘误1:1995),德文版本ENISO3746:2009
【标准号】:DINENISO3746-2009
【标准状态】:作废
【国别】:德国
【发布日期】:2009-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustics;Calibration;Determination;Earprotectors;Englishlanguage;Envelopingsurfacemethods;Environment;Externalnoise;Fixings;Inspection;Installations;Machinenoise;Measurement;Measuringenvironment;Measuringinstruments;Measuringsurfaces;Measuringtechniques;Methods;Microphones;Noise;Noise(environmental);Noisemeasurement;Noisemeasurements;Noisereduction;Noisesources;Operation;Performancetests;Position;Precision;Reflective;Sonictesting;Soundabsorption;Soundenergy;Soundlevel;Soundpower;Soundpressure;Soundpressurelevel;Soundsources;Specification(approval);Vibrationengineering
【摘要】:1.1GeneralThisInternationalStandardspecifiesamethodformeasuringthesoundpressurelevelsonameasure-mentsurfaceenvelopingthesourceinordertocal-culatethesoundpowerlevelproducedbythenoisesource.Itgivesrequirementsforthetestenvironmentandinstrumentationaswellastechniquesforobtain-ingthesurfacesoundpressurelevelfromwhichthesoundpowerlevelofthesourceiscalculated,leadingtoresultswhichhaveagrade3accuracy.Itisimportantthatspecificnoisetestcodesforvari-oustypesofequipmentbeestablishedandusedinaccordancewiththisInternationalStandard.Foreachtypeofequipment,suchnoisetestcodeswillgivedetailedrequirementsonmounting,loadingandop-eratingconditionsfortheequipmentundertestaswellasaselectionofthemeasurementsurfaceandthemicrophonearrayasspecifiedinthisInternationalStandard.NOTE1Thenoisetestcodeforaparticulartypeofequipmentshouldgivedetailedinformationontheparticularsurfacethatisselected,astheuseofdifferentlyshapedmeasurementsurfacesmayyielddifferingestimatesofthesoundpowerlevelofasource.1.2TypesofnoiseandnoisesourcesThemethodspecifiedinthisInternationalStandardissuitableformeasurementsofalltypesofnoise.NOTE2Aclassificationofdifferenttypesofnoise(steady,non-steady,quasi-steady,impulsive,etc.)isgiveninISO12001.ThisInternationalStandardisapplicabletonoisesourcesofanytypeandsize(e.g.device,machine,component,sub-assembly).NOTE3MeasurementsaccordingtothisInternationalStandardmaybeimpracticableforverytallorverylongsourcessuchaschimneys,ducts,conveyorsandmulti-sourceindustrialplants.1.3TestenvironmentThetestenvironmentthatisapplicableformeasure-mentsmadeinaccordancewiththisInternationalStandardmaybelocatedindoorsoroutdoors,withoneormorereflectingplanespresent,meetingspecifiedrequirements.
【中国标准分类号】:
【国际标准分类号】:17_140_01
【页数】:38P.;A4
【正文语种】:英语
【英文标准名称】:Waterquality-Determinationofselectedpolybrominateddiphenylethersinsedimentandsewagesludge-Methodusingextractionandgaschromatography/massspectrometry
【原文标准名称】:水质.测定沉积下水道淤泥中的多溴联苯醚.用萃取和气相色谱/质谱法光谱测定法
【标准号】:BSISO22032-2006
【标准状态】:作废
【国别】:英国
【发布日期】:2007-01-31
【实施或试行日期】:2007-01-31
【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】:分析;化学分析和试验;水化学;测定;含量测定;联苯;废水检验;萃取;萃取分析法;质量浓度;溴酸盐联;试剂;沉积物;污泥;光谱化学分析;光谱测定法;试验;水;水常规;水常规(实验);水质;水质试验
【英文主题词】:Analysis;Chemicalanalysisandtesting;Chemistryofwater;Determination;Determinationofcontent;Diphenylether;Examinationofwastewater;Extraction;Extractionmethodsofanalysis;Massconcentration;PolybromatedBiphenyl;Reagents;Sediment;Sewage;Sewagesludge;Spectrochemicalanalysis;Spectrometry;Testing;Water;Waterpractice;Waterquality;Watertesting
【摘要】:ISO22032:2006specifiesamethodforthedeterminationofselectedpolybrominateddiphenylethers(PBDE)insedimentandsludgeusinggaschromatography/massspectrometry(GC-MS)intheelectronimpact(EI)ornegativeionchemicalionization(NCI)mode.WhenusingGC-EI-MS,themethodisapplicabletosamplescontaining0,05to25microgramsperkilogramoftetra-tooctabromocongenersand0,3to100microgramsperkilogramofdecabromodiphenylether(BDE-209),respectively.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:36P.;A4
【正文语种】:英语