GB/T 3386-1988 工业过程测量和控制系统用电动和气动模拟记录仪和指示仪性能评定方法
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来源:标准资料网
基本信息
| 标准名称： | 工业过程测量和控制系统用电动和气动模拟记录仪和指示仪性能评定方法 |
| 英文名称： | Methods of evaluating the performance of electrical and pneumatic analog recorders and indicators for industrial-process measurement and control systems |
| 中标分类： |
仪器、仪表 >>
工业自动化仪表与控制装置 >>
工业控制与计算机应用装置 |
| ICS分类： |
计量学和测量、物理现象 >>
电学、磁学、电和磁的测量 >>
电和磁量值的测量
|
| 替代情况： | 代替GB 3386-1982;被GB/T 3386.1-2007代替 |
| 发布部门： | 中国机械工业联合会 |
| 发布日期： | 1988-06-02 |
| 实施日期： | 1989-01-01 |
| 首发日期： | 1983-10-21 |
| 作废日期： | 2008-05-01 |
| 主管部门： | 中国机械工业联合会 |
| 归口单位： | 全国工业过程测量和控制标准化技术委员会 |
| 起草单位： | 上海工业自动化仪表所 |
| 出版日期： | 1900-01-01 |
| 页数： | 16页 |
适用范围
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所属分类： 仪器 仪表 工业自动化仪表与控制装置 工业控制与计算机应用装置 计量学和测量 物理现象 电学 磁学 电和磁的测量 电和磁量值的测量
Product Code:SAE AS942
Title:Pressure Altimeter System, Minimum Safe Performance Standard
Issuing Committee:A-4 Aircraft Instruments Committee
Scope:The instrument system specified shall accept an input of static pressure and in some equipment other inputs that contribute altitude information to provide a visual indication of pressure altitude. If equipped with an automatic correction mechansim, it shall indicate by a positive means when the automatic correction mechanism is not in use. If the static source pressure error compensating mechanism is operational it shall be functional throughout the required operating envelope of the particular aircraft. Each aircraft type has its own static source error data which shall be obtained from the airframe manufacturer's certified data. when a central air data computer is used in the altimeter system, the CADC shall be certified to its own governing document and the altimeter system (CADC and display) shall comply with the requirements of this document. The purpose of Section I of this document is to specify the requirements for minimum safe performance of an altimeter system in its normal mode of operation on subsonic aircraft. Compliance with this section is a means of assuring that the altimeter system will satisfactorily perform its intended function when exposed to cinditions encountered in routine aeronautical operations (normal operation).【英文标准名称】:TestMethodforDeterminationofYieldStressandApparentViscosityofEngineOilsatLowTemperature(05.03)
【原文标准名称】:测定低温发动机油屈服应力和表观粘度的试验方法
【标准号】:ANSI/ASTMD4684-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:2006-11-21
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:石油产品;试验;粘度;低温;润滑剂;屈服应力
【英文主题词】:Lowtemperatures;Lubricants;Petroleumproducts;Testing;Viscosity;Yieldstress
【摘要】:Thistestmethodcoversthemeasurementoftheyieldstressandviscosityofengineoilsaftercoolingatcontrolledratesoveraperiodexceeding45htoafinaltesttemperaturebetween-10and-40?C.Theviscositymeasurementsaremadeatashearstressof525Paoverashearrateof0.4to15s.Theviscosityasmeasuredatthisshearstresswasfoundtoproducethebestcorrelationbetweenthetemperatureatwhichtheviscosityreachedacriticalvalueandborderlinepumpingfailuretemperatureinengines.ProcedureAofthistestmethodhasprecisionstatedforayieldrangefromlessthan35Pato210Paandapparentviscosityrangefrom4300to270000mPas.Thetestprocedurecandeterminehigheryieldstressandviscositylevels.Thistestmethodisapplicableforunusedoils,sometimesreferredtoasfreshoils,designedforbothlightdutyandheavydutyengineapplications.Italsohasbeenshowntobesuitableforuseddieselandgasolineengineoils.Theapplicabilitytopetroleumproductsotherthanengineoilshasnotbeendetermined.ThistestmethodusesthemilliPascalsecond(m?Pas)astheunitofviscosity.Forinformation,theequivalentunit,centiPoise(cP),isshowninparentheses.Thistestmethodcontaintwoprocedures:ProcedureAincorporatesseveralequipmentandproceduralmodificationsfromTestMethodD4684-02thathaveshowntoimprovetheprecisionofthetest,whileProcedureBisunchangedfromTestMethodD4684-02.Additionally,ProcedureAappliestothoseinstrumentsthatutilizethermoelectriccoolingtechnologyandthosethatuseindirectrefrigerationtechnologyofrecentmanufactureforinstrumenttemperaturecontrol.ProcedureBcanusethesameinstrumentsusedinProcedureAorthosecooledbycirculatingmethanol.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:
【正文语种】:英语
