二氧化碳NO.2A的详细介绍二氧化碳NO.2A快速检测管是一种现场快速、直读测定气体浓度的检测手段，由一支内装显色指示剂、外壁印有浓度刻度的玻璃管组成，当被测气体通过管内指示剂时发生显色化学反应，测试人便可通过变色界线直接读出气体的浓度。具有数百种气体和不同的浓度范围，欢迎来电咨询。CarbondioxideNo.2ACO2PerformanceMeasuringRange250to3000ppmSamplingRate100mL/min(500mL)CorrectionFactor1SamplingTime5minutesDetectingLimitColorChangeOrangeYellow→YellowReactionPrincipleCO2+2KOH→K2CO3+H2OCoefficientofVariation10%(for250to1000ppm),5%(for1000to3000ppm)ShelfLife2YearsCorrectionsfortemperatureUnnecessaryfor0to40CorrectionsforhumidityUnnecessaryforR.H.0to90%Storethetubesatcoolanddarkplace.Possiblecoexistingsubstancesandtheirinterferences(NOTE)SubstanceConcentrationInterferenceChangecolorbyitself--------------------OthersubstancemeasurablewiththisdetectortubeCalibrationgasgenerationHighpressuregascylindermethodTLV-TWATLV-STELExplosiverange5000ppm30000ppm-)