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ANSI/EIA 426-B-1998 全频程额定功率的扬声器

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【英文标准名称】:Loudspeakers,PowerRating,FullRange
【原文标准名称】:全频程额定功率的扬声器
【标准号】:ANSI/EIA426-B-1998
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:
【标准类型】:()
【标准水平】:()
【中文主题词】:额定功率;扬声器;电子工程
【英文主题词】:loudspeakers;powerratings;electronicengineering
【摘要】:Thisstandarddefinestestmethodsandcriteriaofacceptabilityfortestingtheperformanceofaloudspeakerorloudspeakersystemdesignedforconsumerusewithindefinedlimitsintheareasofpowercompression,harmonicdistortion,andacceleratedlifetesting,whenoperatedatorbelowtheoptimumamplifierpower.GuidelinesforusingthisstandardtoestablishppowerratingforaproductarepresentedinAnnexC(informative).Loudspeakersaretobetestedastheyareintendedtobeused.Transducersaretobetestedeitheronatestbaffle(seeAnnexB(normative))orintheenclosurerecommendedbythemanufacturer;manufacturer'sstatedratingsmustclearlyspecifyanysuchenclosure.Noexternalcrossovernetworkshallbeusedexceptasspecifiedbythemanufacturer.Systemsprovidedwithenclosuresand/orcrossovernetworksaretobetestedwithcrossovernetworksandenclosuresintact,unlessotherwisspecifiedbythemanufacturer.
【中国标准分类号】:M72
【国际标准分类号】:33_160_50
【页数】:
【正文语种】:英语


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【英文标准名称】:Non-fattyfoods-Determinationofdithiocarbamateandthiuramdisulfideresidues-Part3:UV-spectrometricxanthogenatemethod;GermanversionEN12396-3:2000
【原文标准名称】:清淡食品.二硫化基甲酸盐和二硫化四烷基秋兰姆残留物测定.第3部分:紫外分光光度法
【标准号】:EN12396-3-2000
【标准状态】:现行
【国别】:
【发布日期】:2000-10
【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】:清淡的;最大含量;测定;质量控制;残留物试验;含量测定;实验室试验;残留物;化学分析和试验;分析;分光光度法;试样制备;二硫化碳;植物制品;灭菌剂;最大数量;食品检验;黄原酸;食品;精密度
【英文主题词】:Analysis;Carbondisulphide;Chemicalanalysisandtesting;Determination;Determinationofcontent;Dithiocarbamate;Foodinspection;Foodproducts;Fungicides;Laboratorytests;Maximumcontents;Maximumquantity;Non-fatty;Plantproducts;Precision;Qualitycontrol;Residuetests;Residues;Specimenpreparation;Spectrophotometry;Thiuramdisulfide;Vegetable;Xanthates;Xanthogenatemethod
【摘要】:
【中国标准分类号】:X09;C53
【国际标准分类号】:67_050
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:Hand-heldnon-electricpowertools-Safetyrequirements-Part8:Sandersandpolishers(includesAmendmentA1:2008);EnglishversionofDINEN792-8:2009-12
【原文标准名称】:非电动手持工具.安全要求.第8部分:檀木和磨光器,EN792-8:2001+A1:2008的德文版本
【标准号】:DINEN792-8-2009
【标准状态】:作废
【国别】:德国
【发布日期】:2009-12
【实施或试行日期】:2009-12-01
【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】:Abrasivepaper;Abrasivesheets;Abrasives;Beltgrinders;Burnishers;Burnishingtools;Cam;Definitions;Equipmentsafety;Ergonomics;Grinding;Grindingmachines;Grindingtools;Handtools;Hazards;Hydraulicfluids;Machines;Manual;Manualoperation;Manuallyoperatedmachines;Marking;Mechanicalsafety;Noiseemissions;Non-electrical;Operatinginstructions;Pedestrian-controlledsystems;Polishing;Polishingmachines;Polishingwheels;Portablemachines;Powered;Safety;Safetyengineering;Safetyofmachinery;Safetyrequirements;Specification(approval);Symbols;Testing;Tools;Vibratinggrinders;Vibration;Warningnotices;Warnings
【摘要】:EN792appliestohand-heldnon-electricpowertoolsdrivenbyrotaryorlinearmotors,poweredbycompressedairorhydraulicfluidandintendedtobeusedbyoneoperatorandsupportedby:--theoperator'shandorhands,asuspension,e.g.abalancer.ThispartofEN792appliestohand-heldnonelectricpowertoolsintendedforpolishingandsandingwithalltypesofmovemente.g.rotary,orbitalandreciprocating,usingcoatedabrasiveproductsandbonnetsofvarioussoftmaterialsandendlessbelts.Thispartliststhesignificanthazardscausedbysuchpowertoolsandspecifiessafetyrequirementsvalidfordifferentaspectsofsafetyduringtheirforeseeablelifetime.Powertoolscoveredbythispartofthestandard:--beltsanders,orbitalsanders,polishers,--randomorbitalsanders,rotarysandersstraightlinesanders.Specialrequirementsandmodificationsonahand-heldpowertoolforthepurposeofmountingitinafixturearenotcoveredbythispart.NOTEAtthedateofpublicationnosandersandpolishersdrivenbyinternalcombustionenginesareknown.
【中国标准分类号】:J47
【国际标准分类号】:25_140_10;25_140_99
【页数】:24P.;A4
【正文语种】:英语