简单介绍： 2-丁醇检测管115 2-butanol ch3ch2ch(oh)ch3，measuring range 5 to 150 ppm number of pump strokes 3 correction factor 1 sampling time 3minutes per pump stroke detecting l......
2-丁醇检测管115 2-butanol 产品详情
详情介绍：
2-丁醇检测管115 2-butanol 2-butanol 15ch3ch2ch(oh)ch3performance
measuringrange
5 to 150 ppm
number of pumpstrokes
3
correction factor
1
samplingtime
3 minutes per pumpstroke
detectinglimit
1 ppm (n=3)
color change
yellow → paleblue
reaction principle
ch3ch2ch(oh)ch3 + cr6+ + h3po4 → cr3亄
coefficient ofvariation 15% (for 5 to 50ppm), 10% (for 50 to 150 ppm)
shelflife 3 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 similar stain bythemselves.
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
100ppm - 1.7 to 9.8%