三乙胺(C2H5)3N检测管3D三乙胺(C2H5)3N检测管3D，GASTEC三乙胺(C2H5)3N检测管3D检测范围5.3-2100ppm，检测管检测时间在1-10小时左右。三乙胺(C2H5)3N检测管3D采用自然扩散的方式。三乙胺(C2H5)3N检测管3D其特点：简洁，轻巧，方便多用、直接读数、不需取样设备。被动扩散式检测管是用来测定较长时间下气体浓度的时量平均值（TWA），采用自然扩散的方式。这种检测管里面填充有吸附剂及反应剂，气体以一定的速率被均匀吸附，从而出现较为明显均匀的变色检测工作场所人员的***气体暴露量时，用右图的检测管夹（710）放置在人员衣领处即可。检测***气体在工作场所的分布时，把该检测管固定放置一段时间后就可检测出来。也可用来进行更长时间的检测AmmoniaNO.3DNH3PerformanceMeasuringRange2.5to1000ppmSamplingHours0.5to10hoursDetectingLimit0.5ppm(10hours)ColourChangePurple→YellowReactionPrinciple2NH3+H2SO4→(NH4)2SO4CoefficientofVariation10%(for25to500ppm-hr)ShelfLife3YearsCorrecti***fortemperature&humidityTemperaturecorrectionisnecessaryStorethetubesatcoolanddarkplace.PossiblecoexistingsubstancesandtheirinterferencesSubstanceConcentrationInterferenceChangecolourbyitselftoAmines,Hydrazine+YellowAromaticaminesNoNoOthersubstancemeasurablewiththisdetectortubeSubstanceCorrectionFactorSamplingTimeMeasuringRangeDimethylamine0.750.5to10hours1.9to750ppmN,N-Dimethylethylamine1.60.5to10hours4to1600ppmHydrazine0.650.5to10hours1.6to650ppmTriethylamine2.10.5to10hours5.3to2100ppmCalibrationgasgenerationPermeationtubemethodTLV-TWATLV-STELExplosiverange25ppm35ppm15to28%GASTEC|GV-110S|GV-100S|手动气体***AP-20|北川式气体检测管|光明理化气体检测管|日本理化手动气体采样器|北川式气体***GASTEC日本气体快速检知管|便携式气味传感器|气味检测仪迷你型XP-329m|气味传感器XP-329ⅢR|恒流型自动气体采样器GSP-400FT|GASTEC气体采样器)