SAE AIR5428 Utility System Characterization, An Overview
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来源:标准资料网
Product Code:SAE AIR5428
Title:Utility System Characterization, An Overview
Issuing Committee:A-6a4 Utility Control Systems Committee
Scope:Modern air vehicles consist of many subsystems, traditionally managed as a federation of independent subsystems. Advances in control technologies, digital electronics and electro-mechanical hardware, provide potential opportunities to integrate subsystems for future aircraft. This document does not define any particular integration strategy. Its purpose is to provide information about traditional federated subsystems from the functional, control, resource, and hardware perspective. To be able to integrate subsystems, one must have a basic understanding of the subsystems, and this document provides an introduction or starting point for initiating the integration process.
【英文标准名称】:Laboratoriesforresearch,developmentandanalysis.Containmentlevelsofmicrobiologylaboratories,areasofrisk,localitiesandphysicalsafetyrequirements.
【原文标准名称】:研究、开发和分析实验室.微生物实验室、危险区域、地点的封闭级别和身体安全要求
【标准号】:NFX42-206-1998
【标准状态】:现行
【国别】:法国
【发布日期】:1998-06-01
【实施或试行日期】:1998-06-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:A40
【国际标准分类号】:07_080;07_100_01
【页数】:23P;A4
【正文语种】:其他
【英文标准名称】:TestMethodforDeterminationoftheLinearCoefficientofThermalExpansionofPlasticLumberandPlasticLumberShapesbetween-30oand140oF(-34.4oand60oC)
【原文标准名称】:在-30o到140oF(-34.4oand60oC)之间测定塑料废物和塑料废旧成形物热膨胀线性系数的方法
【标准号】:ANSI/ASTMD6341-1998
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【实施或试行日期】:1999-02-10
【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】:塑料件;;试验
【英文主题词】:testing;thermalexpansioncoefficient;partsmadeofplastic
【摘要】:Thistestmethodcoversthedeterminationofthecoefficientoflinearthermalexpansionforplasticlumberandplasticlumbershapestotwosignificantfigures.Thedeterminationismadebytakingmeasurementswithacaliperatthreediscretetemperatures.Atthetesttemperaturesandunderthestressesimposed,theplasticlumbershallhaveanegligiblecreeporelasticstrainrate,orboth,insofarasthesepropertieswouldsignificantlyaffecttheaccuracyofthemeasurements.1.1.1Thistestmethoddetailsthedeterminationofthelinearcoefficientofthermalexpansionofplasticlumberandplasticlumbershapesintheir"asmanufactured"form.Assuch,thisisatestmethodforevaluatingthepropertiesofplasticlumberorshapesasaproductandnotamaterialpropertytestmethod.Thethermalexpansionofplasticlumberandshapesiscomposedofareversiblecomponentonwhichmaybesuperimposedchangesinlengthduetochangesinmoisturecontent,curing,lossofplasticizerorsolvents,releaseofstresses,phasechanges,voids,inclusions,andotherfactors.Thistestmethodisintendedtodeterminethecoefficientoflinearthermalexpansionundertheexclusionofnon-linearfactorsasfaraspossible.Ingeneral,itwillnotbepossibletoexcludetheeffectofthesefactorscompletely.Forthisreason,thetestmethodcanbeexpectedtogiveareasonableapproximationbutnotnecessarilyprecisedeterminationofthelinearcoefficientofthermalexpansion.Plasticlumberandplasticlumbershapesarecurrentlymadepredominatelywithrecycledplasticswheretheproductisnon-homogeneousinthecross-section.However,thistestmethodmayalsobeapplicabletosimilarmanufacturedplasticproductsmadefromvirginresinsorotherplasticcompositematerials.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninbracketsareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:17_040_99;83_140_99
【页数】:
【正文语种】:英语