【英文标准名称】:Microphonesandearphonesforspeechcommunications(IEC61842:2002);GermanversionEN61842:2002
【原文标准名称】:语音传递用扩音器和耳机(IEC61842:2002);德文版本EN61842:2002
【标准号】:DINEN61842-2002
【标准状态】:现行
【国别】:德国
【发布日期】:2002-11
【实施或试行日期】:2002-11-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:参数;电声学;传声器;耳机;语音传输;定义;头戴送受话器;变压器;声学;规范(验收);分类;测量;测量技术;电气工程;特性;作标记
【英文主题词】:Acoustics;Classification;Definition;Definitions;Earphones;Electricalengineering;Electroacoustics;Headphones;Marking;Measurement;Measuringtechniques;Microphones;Parameters;Properties;Specification(a
【摘要】:Thisstandardappliestothemicrophonepartandearphonepartofhandsets,headsetsorearsetsforspeechcommunications,andalsotothemicrophoneunitsandearphoneunitsofbuilt-inhandsets,headsetsorearsets.Theobjectofthisstandardistoestablishdefinitionsrelatingtotheseelectroacoustictransducers,andtostandardizethecharacteristicstobespecifiedandtherelevantmethodsofmeasurement.Thisdoesnotexcludetheuseofothermethodsofmeasurementwhichcanbeshowntogivethesameormorereliableresults
【中国标准分类号】:L31
【国际标准分类号】:17_140_50;33_160_50
【页数】:32P;A4
【正文语种】:德语
【英文标准名称】:StandardSpecificationforPerformanceofNon-AsbestosFiber-ReinforcedCementShake,Shingle,andSlateRoofingSystems
【原文标准名称】:无石棉纤维增强水泥盖屋板、屋顶板和屋面石板系统的性能的标准规范
【标准号】:ASTMC1459-2004e1
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C17.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:抗燃的;纤维增强的;墙面板;石板;无石棉的;面砖;合格试验;性能;水泥;屋顶层
【英文主题词】:fiber-cement;fiber-reinforcedcement;fire-resistant;heat/rain/test;installedstrength;installedweight;qualificationtesting;restrictedframe;roofing;shake;shingle;slate;tile;wet/drycycling
【摘要】:1.1Thisspecificationcoverstheperformanceofnon-asbestos,fiber-reinforcedcementshake,shingle,andslateroofingsystemsthatareofuniformornonuniformthicknessandtexture.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.2Thevaluesstatedininch-poundunitsareregardedasthestandard.Thevaluesgiveninparentheses(SIunits)aregivenforinformationonly.1.3Thisspecificationdoesnotincludedetailsofproductinstallationandworkmanship.Themanufacturer'sinstallationinstructionsshallbereferredtofordetailssuchasslope,interlayment,underlayment,sheathingrequirements,exposure,fasteners,andrepairorreplacementinstructions.1.4Thisspecificationdoesnotaddressrequirementsforindividualshake,shingle,andslateproducts,whicharecoveredinSpecificationC1225.1.5Thetestscontainedinthisspecificationareintendedasqualificationtestsforaroofingsystem.Changesinproductformulation,design,ormanufacturingprocessbeyondtherangesallowedinthemanufacturer'squalitycontrolspecifications,shallrequiresubsequentsystemretestingorwrittenconcurrencebyanindependenttestingagencythatthechangesinformulation,design,ormanufacturingprocesswillnotbedetrimentaltosystemperformance.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_15
【页数】:4P.;A4
【正文语种】:
基本信息
标准名称: | 胶木支承 |
中标分类: |
机械 >>
工艺装备 >>
组合卡具 |
发布日期: | 1982-07-23 |
实施日期: | 1982-10-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 1页 |
适用范围
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所属分类: 机械 工艺装备 组合卡具