IEC 61837-1-2012 频率控制和选择用表面安装的压电器件标准外形和端头连接第1部分:塑料模压外壳外形
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【英文标准名称】:Surfacemountedpiezoelectricdevicesforfrequencycontrolandselection-Standardoutlineandterminalleadconnections-Part1:Plasticmouldedenclosureoutlines
【原文标准名称】:频率控制和选择用表面安装的压电器件标准外形和端头连接第1部分:塑料模压外壳外形
【标准号】:IEC61837-1-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-04-01
【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/TC49
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Casedrawing;Connections;Designations;Dimensions;Drawings;Electricalengineering;Electronicequipmentandcomponents;Enclosures;Frequencyselection;Frequencystabilization;Piezoelectricdevices;Plastics;Plasticsmouldingmaterial;SMD;Surfacemounting;Surfacemountingdevices;Types
【摘要】:
【中国标准分类号】:L94
【国际标准分类号】:31_140;31_240
【页数】:44P;A4
【正文语种】:英语
基本信息
| 标准名称： | 自卸汽车液压缸产品质量分等 |
| 中标分类： |
车辆 >>
汽车底盘与车身 >>
底盘其他设备 |
| 替代情况： | 原标准号ZB T25002-89 |
| 发布日期： | |
| 实施日期： | 2006-06-01 |
| 首发日期： | |
| 作废日期： | 2005-04-15 |
| 出版日期： | |
| 页数： | 6页 |
适用范围
没有内容
前言
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目录
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引用标准
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所属分类： 车辆 汽车底盘与车身 底盘其他设备
【英文标准名称】:StandardTestMethodforSnaggingResistanceofFabrics(BeanBag)
【原文标准名称】:织物耐钩私性的标准试验方法(豆袋试验法)
【标准号】:ASTMD5362-2003(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:D13.59
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:knittedfabrics;snaggingresistance;wovenfabric
【摘要】:AcceptanceTesting8212;Thistestmethodmaybeusedforacceptancetestingofcommercialshipmentsoffabricsbecausetheprecisionisacceptable(see15.1).Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,usethesamplesforsuchacomparativetestthatareashomogeneousaspossible,drawnfromthesamelotofmaterialasthesamplesthatresultedindisparateresultsduringinitialtestingandrandomlyassignedinequalnumbertoeachlaboratory.Thetestresultsfromthelaboratoriesinvolvedshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifbiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsforthatmaterialmustbeadjustedinconsiderationoftheknownbias.Thistestmethodmaybeusedforqualitycontroltestingoffabricsduringmanufacturingandproductcomparisonsofdifferentfabricsbymanufacturers,retailers,andusers.Thistestmethodmayalsobeusedbyresearcherstoexaminetheeffectofnewfibers,yarns,fabricconstructions,andfinishesonthesnaggingresistanceoffabrics.Thistestmethodmaybeusedtotestthesnaggingresistanceofmostapparelandhomefurnishingsfabrics.However,adifferenttestmethod(see5.3.1)maybeneededfordifferenttypesoffabricsanddifferentend-uses(suchastowels,swimwear,slacks,andupholstery).Somefabricswhichmaynotbesuitableforthistestmethodaredescribedin1.2.ManyopenconstructionfabricscanbetestedforsnaggingresistanceusingAATCCTestMethod65.ManyheavyorstifffabricscanbetestedforsnaggingresistanceusingTestMethodD3939.ThesnaggingresistanceofmanypilefloorcoveringscanbetestedbyTestMethodD1335.Becausefabricsnaggingcanbeaffectedbylaunderingordrycleaning,itmaybeadvisabletotestthesnaggingresistanceofafabricbeforeandafterlaunderingordrycleaning.Thesnaggingresistanceofaspecificfabricvarieswithindividualwearersandgeneralconditionsofuse.Therefore,itcanbeexpectedthatgarmentsofthesamefabricwillshowafairlywidesnaggingresistancespectrumafterwearandmuchgreatervariationinwearthaninreplicatefabricspecimenssubjectedtocontrolledlaboratorytests.Thisfactorshouldbeconsideredwhenadoptinglevelsofacceptabilityforanyspecificationthatincludessnaggingresistance.Snagsobservedinworngarmentsvaryappreciablyinnumberandappearance.Theappearanceofasnagdependsparticularlyon(1)thedegreeofcolorcontrastbetweenthesnagandthesurroundingareaofthefabric,or,(2)thepresenceoflongdistortionsorlongprotrusions.Theseconditionsarenotevaluatedwhensnaggingisratedsolelyonthenumberofsnags.SeeSection3foradescriptionofterminologysuchascolorcontrast,distortion,andprotrusionSeeFigs.1-3.Becausetheoverallacceptabilityofaspecificfabricisdependentonboththecharacteristicsofthesnagsandotherfactorsaffectingfabricappearance,itisrecommendedthatfabricstestedinthelaboratorybeevaluatedwithregardtothedefectswhichmaybevisuallyobservedandnotratedsolelyonthenumberofsnagsdeveloped.Aseriesofvisualratingstandards(see6.7)maybesetuptoprovideabasisfortheratings.Thevisualratingstandardsaremostadvantageouswhenthetestedlaboratoryspecimenscorrelatecloselyinappearancewithfabricsfromaweartest;forexamplewhentestedlaboratoryspecimensandfabricsfromaweartestshowsimilarcolorcontrasts.Intheprecedingexample,aseriesoffabrics.......
【中国标准分类号】:W55
【国际标准分类号】:59_080_30
【页数】:8P.;A4
【正文语种】:英语
