简单介绍： 醋酸芐基气体检测管147 amtyl acetate，醋酸芐基气体检测管147气体检测管 amtyl acetate ch3co2(ch2)4ch3(ch3co2c5h11，measuring range 10 to 200 ppm number of pump strokes 2 correction factor 1......
醋酸芐基气体检测管147 amtyl acetate 产品详情
详情介绍：
醋酸芐基气体检测管147 amtyl acetate
amtyl acetate47ch3co2(ch2)4ch3(ch3co2c5h11)performance
measuringrange
10 to 200 ppm
number of pumpstrokes
2
correctionfactor
1
samplingtime
4 minutes per pumpstroke
detectinglimit
2 ppm (n=2)
colorchange
yellow → paleblue
reactionprinciple
ch3co2(ch2)4ch3 + cr6+ + h2so4 → cr3+
coefficient ofvariation 15% (for 10 to 50ppm), 10% (for 50 to 200 ppm)
shelflife 2 years
correctionsfor
temperature & humidity temperature correction is necessary
store the tubes at cool and darkplace.
possible coexisting substances and theirinterferences (note)
substance
concentration
interference
change color by itself
alcohols
- plus error
produce paleblue
ketones
- plus error
produce paleblue
esters
- plus error
produce paleblue
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
100ppm - 1.1 to 7.5%