【英文标准名称】:Gasanalysis-Preparationofcalibrationgasmixturesusingdynamicvolumetricmethods-Part10:Permeationmethod
【原文标准名称】:气体分析.用动态容积法标定气体混合物的准备.第10部分:渗透法
【标准号】:ISO6145-10-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-02
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC158
【标准类型】:()
【标准水平】:()
【中文主题词】:控制样品;渗透;煤气;混合气体;气体;效验气体;气体分析;校正
【英文主题词】:Analysis;Calibration;Calibrationgases;Chemicalanalysisandtesting;Controlsamples;Dynamic;Gasanalysis;Gasmixtures;Gases;Inspectionequipment;Mathematicalcalculations;Methods;Permeation;Testgases;Volumetric;Volumetricanalysis
【摘要】:ThispartofISO6145specifiesadynamicmethodusingpermeationmembranesforthepreparationofcalibrationgasmixturescontainingcomponentmolefractionsrangingfrom10and10.Arelativeexpandeduncertaintyof2,5%ofthecomponentmolefractioncanbeachievedusingthismethod.Inthemolefractionrangeconsidered,itisdifficulttomaintainsomegasmixtures,forexampleincylinders,inastablestate.Itisthereforedesirabletopreparethecalibrationgasimmediatelybeforeuse,andtotransferitbytheshortestpossiblepathtotheplacewhereitistobeused.Thistechniquehasbeensuccessfullyappliedingeneratinglowcontentcalibrationgasmixturesof,forexample,sulfurdioxide(SO2),nitrogendioxide(NO2)andbenzene(C6H6)inair.Ifthecarriergasflowismeasuredasagasmass-flow,thepreparationofcalibrationgasmixturesusingpermeationtubesisadynamic-gravimetricmethodwhichgivescontentsinmolefractions.
【中国标准分类号】:G85
【国际标准分类号】:71_040_40
【页数】:16P;A4
【正文语种】:英语


Product Code:SAE AMS3811
Title:Rods, Aramid Fiber, Polyester Resin Coated, Pultrusion
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers coated round rods fabricated by the pultrusion process from aramid fibers and a weather-resistant polyester resin binder in the form of straight lengths or in coils. These rods have been used typically for nonconductive tension elements in antenna supports where superior long-term weather resistance and extremely light weight are required, but usage is not limited to such applications.