IEC 61969-2-2011 电子设备的机械结构.户外机壳.第2部分:配合尺寸
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【英文标准名称】:Mechanicalstructuresforelectronicequipment-Outdoorenclosures-Part2:Coordinationdimensions
【原文标准名称】:电子设备的机械结构.户外机壳.第2部分:配合尺寸
【标准号】:IEC61969-2-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-11
【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/SC48D
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Cupboards;Dimensionstandards;Dimensions;Electricenclosures;Electricalengineering;Electronicengineering;Electronicequipment;Enclosures;Exteriorareas;Filters;Layout;Openair;Outdoor;Overalldimensions;Sectionalspecification;Standards
【摘要】:
【中国标准分类号】:L94
【国际标准分类号】:31_240
【页数】:16P;A4
【正文语种】:英语
Product Code:SAE ARP1533
Title:Procedure for the Analysis and Evaluation of Gaseous Emissions From Aircraft Engines
Issuing Committee:E-31 Aircraft Exhaust Emissions Measurement Committee
Scope: This is a procedure for calculation of gaseous emissions data, specifically, emission index, fuel-air ratio, and combustion efficiency for aircraft turbine engines based on the measurement of carbon monoxide, carbon dioxide, total hydrocarbons, and the oxides of nitrogen. Reference 2.1.1 gives procedures for the measurement of gaseous emissions from aircraft turbine engines.This document includes instructions for the adjustment of the measured concentrations of the constituents of the exhaust for: a. the humidity of the inlet air, b. the carbon dioxide content of the inlet air, c. the interference of carbon dioxide and water on the measured concentrations of carbon monoxide and the oxides of nitrogen, d. the interference of oxygen on the measured concentration of carbon dioxide, e. the efficiency of the converter for changing other oxides of nitrogen to nitric oxide, and f. the basis of measurement (semidry or wet).【英文标准名称】:StandardTestMethodforVinylideneUnsaturationinPolyethylenebyInfraredSpectrophotometry
【原文标准名称】:用红外线光度分光光度法测定聚乙烯中乙烯不饱和性的试验方法
【标准号】:ASTMD3124-1998(2003)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:塑料;聚乙烯;红外线;含量测定;乙烯类制品;试验
【英文主题词】:FTIR;infraredspectrophotometry;polyethylene;vinylideneunsaturation
【摘要】:Therearethreetypesofolefinicgroupspresentinsufficientconcentrationstowarrantconsideration,oneormoreofwhichcannormallybefoundinanypolyethylene(4).Thethreetypesare:trans-vinylene,R-CH=CH-Rx2032;,sometimesreferredtoastransinternalunsaturation;vinylideneorpendentmethylene,RRx2032;C=CH2;andvinylunsaturation,R-CH=CH2,alsoreferredtoasterminalunsaturation.Thetypeandquantityofthesegroupscaninfluencethechemicalandphysicalpropertiesoftheresin.Informationconcerningtheirpresencemayalsobeusedtocharacterizeoridentifyunknownresinsorblendsofresins.Vinylideneunsaturationrepresentsthemajorportionoftheunsaturationpresentinmostlow-densitypolyethylenes.Infraredspectroscopycanbeusedforthedeterminationofunsaturationinpolyethylene(1,3,5).ThevaluesdeterminedbyinfraredagreewiththosedeterminedbyIC1uptake(5).1.1Thistestmethodisapplicabletoalltypesofpolyethylenes,thoseethyleneplasticsconsistingofethyleneand-olefincopolymerslongerthanpropylene,andblendsoftheaboveinanyratio.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection8.Note18212;ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】: