多环芳烃(pahs)检测管120 产品详情
详情介绍：
多环芳烃(pahs)检测管120
aromatic hydrocarbons20performance
measuringrange
0.4 to 2 ppm
2 to 100 ppm
100 to 200 ppm
number of pumpstroke
2 to 5
1
1/2
correctionfactor
1/2 to 1.5
1
2
samplingtime
1.5 minutes per pumpstroke
detectinglimit
0.2 ppm (n=5)
colorchange
white → brown
reactionformula
aromatichydrocarbons + i2o5 + h2so4 → i2
coefficient ofvariation 10% (for0.1 to 0.5 ppm), 5% (for 0.5 to 1.5 ppm)
shelflife 2years
correctionsfor
temperature & humidity unnecessary
store the tubes at cool and darkplace.
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
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