基本信息
| 标准名称： | 电话用脉冲式按键号盘测试方法 |
| 英文名称： | Methods of measurement for pushbutton dialer with pulse |
| 中标分类： |
通信、广播 >>
通信设备 >>
数据通信设备 |
| ICS分类： |
|
| 替代情况： | 作废; |
| 发布部门： | 国家技术监督局 |
| 发布日期： | 1990-02-01 |
| 实施日期： | 1990-08-01 |
| 首发日期： | 1990-02-01 |
| 作废日期： | 2005-10-14 |
| 主管部门： | 信息产业部（通信） |
| 归口单位： | 信息产业部（通信） |
| 起草单位： | 上海电讯器材厂 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：10， 字数：16000 |
适用范围
本标准规定了与GB 9033《电话用脉冲式按键号盘技术要求》相对应的测试方法。本标准适用于电话用脉冲式按键号盘。
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 通信 广播 通信设备 数据通信设备
【英文标准名称】:StandardTestMethodforMeasurementofDryFilmThicknessofThinFilmCoil-CoatedSystemsbyDestructiveMeansUsingaBoringDevice
【原文标准名称】:用钻孔装置破坏性测量薄膜盘绕覆层系统的干膜厚度的标准试验方法
【标准号】:ASTMD5796-2003(2010)
【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】:D01.53
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:borerbit;boring;crater;destructive;dryfilm;measurestage;micrometer;opticalmeasurement;thickness;thinfilms;videocamera;Boringdevices;Coatings(paint/relatedapplications);Coatingthickness;Destructivetesting--coatings;Dryfilmthickn
【摘要】:Measurementofdryfilmthicknessoforganiccoatingsbyphysicallycuttingthroughthefilmandopticallyobservingandmeasuringthethicknessofferstheadvantageofdirectmeasurementascomparedwithnondestructivemeans.Constituentcoatinglayersofanoverallthicknessofacoatingsystemcanusuallybemeasuredindividuallybythistestmethod,provideadhesionbetweeneachlayerissufficient.(However,thiscanbedifficultincaseswheretheprimer,topcoat,ormultiplecoatinglayershavethesame,orverysimilar,appearance.)1.1Thistestmethodcoversthemeasurementofdryfilmthickness(DFT)ofcoatingfilmsbymicroscopicobservationofaprecision-cut,shallow-anglecraterboredintothecoatingfilm.Thiscraterrevealscrosssectionallayersappearingasrings,whosewidthisproportionaltothedepthofthecoatinglayer(s)andallowsfordirectcalculationofdryfilmthickness.1.1.1TheApparatus,Procedure,andPrecisionandBiasdiscussionsincludeMethodAandMethodB.MethodAinvolvestheuseofanopticalmeasurementapparatuswhichisnolongercommerciallyavailable,butremainsavalidmethodofdryfilmmeasurement.MethodBisasoftwaredrivenmeasurementprocedurethatsupersedesMethodA.1.2Thesubstratemaybeanyrigid,metallicmaterial,suchascold-rolledsteel,hot-dippedgalvanizedsteel,aluminum,etc.Thesubstratemustbeplanarwiththeexceptionofsubstratesexhibitingx201C;coilset,x201D;whichmaybeheldlevelbytheuseoftheclampingtoolonthedrillingdevice.Note18212;Variationsinthesurfaceprofileofthesubstratemayresultinmisrepresentativeorganiccoatingthicknessreadings.Thisconditionmayexistoversubstratessuchashot-dipped,coatedsteelsheet.Thisistrueofallx201C;precisioncutx201D;methodsthatareusedtodeterminedryfilmthicknessoforganiccoatings.Thisiswhyseveralmeasurementsacrossthestripmaybeusefulifsubstratesurfaceprofileissuspect.1.3Therangeofthicknessmeasurementis0to3.5mils(0to89x03BC;m).Note28212;ForDFTmeasurementsoffilmsgreaterthan3.5mils(89x03BC;m),butlessthan63mils(1600x03BC;m),a45x00B0;borermaybeusedinaccordancewiththistestmethod,withtheexceptionof6.8,wherethemicrometerreadingwouldprovideadirectread-out,anddivisionbytenwouldbeunnecessaryper4.3.1MethodA.1.4Measurementsmaybemadeoncoil-coatedsheet,certainformedproducts,orontestpanels.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:17_040_20
【页数】:4P.;A4
【正文语种】:英语