ASTM D3609-2000(2005) 使用渗透管的校准技术标准实施规范

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【英文标准名称】:StandardPracticeforCalibrationTechniquesUsingPermeationTubes
【原文标准名称】:使用渗透管的校准技术标准实施规范
【标准号】:ASTMD3609-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D22.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:试验设备;校正
【英文主题词】:analyzers;butanepermeationtubes;calibration;CL2permeationtubes;gaspermeabletubes;H2permeationtubes;NH3permeationtubes;NH3permeationtubes;NO2permeationtubes;propanepermeationtubes;SO2permeationtubes
【摘要】:Mostanalyticalmethodsusedinairpollutantmeasurementsarecomparativeinnatureandrequirecalibrationorstandardization,orboth,oftenwithknownblendsofthegasofinterest.Sincemanyoftheimportantairpollutantsarereactiveandunstable,itisdifficulttostorethemasstandardmixturesofknownconcentrationforextendedcalibrationpurposes.Analternativeistopreparedynamicallystandardblendsasrequired.Thisprocedureissimplifiedifaconstantsourceofthegasofinterestcanbeprovided.Permeationtubesprovidethisconstantsource,ifproperlycalibratedandifmaintainedatconstanttemperature.Permeationtubeshavebeenspecifiedasreferencecalibrationsources,forcertainanalyticalprocedures,bytheEnvironmentalProtectionAgency(3).Note8212;Thissystemhastheadvantageofsmalleruncertaintyofthetemperatureofthepermeationtube.FIG.1OptionalSystemforLaboratoryUseofaPermeationTube1.1Thispracticedescribesameansforusingpermeationtubesfordynamicallycalibratinginstruments,analyzers,andanalyticalproceduresusedinmeasuringconcentrationsofgasesorvaporsinatmospheres(,).1.2Typicalmaterialsthatmaybesealedinpermeationtubesinclude:sulfurdioxide,nitrogendioxide,hydrogensulfide,chlorine,ammonia,propane,andbutane().1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N04
【国际标准分类号】:17_020
【页数】:5P.;A4
【正文语种】:


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基本信息
标准名称:农药最大残留限量 甲氨基阿维菌素苯甲酸盐 棉籽
发布部门:中华人民共和国农业部
发布日期:2009-04-23
实施日期:2009-05-20
首发日期:
作废日期:
出版社:中国标准出版社
出版日期:2009-05-20
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所属分类: 食品 食品发酵 酿造 调味品 食品技术 香料和调料 食品添加剂
Product Code:SAE AS7110/9
Title:Nadcap Requirements for Percussion Stud Welding (Cancelled Mar 2007)
Issuing Committee:Nadcap Management Council
Scope:This Aerospace Standard (AS) is to be used to supplement AS7110. In addition to the requirements contained in AS7110, the requirements contained herein shall apply to suppliers seeking Nadcap accreditation for percussion stud welding.