简单介绍： 丙酮检测管151 acetone ch3coch3，measuring range 0.05 to 0.8% 0.8 to 2.0% number of pump strokes 2 1 correction factor 1 2.5 sampling time 2 minutes per pump stroke det......
丙酮检测管151 acetone ch3coch3 产品详情
详情介绍：
丙酮检测管151 acetone ch3coch3
acetone 51ch3coch3
performance
measuringrange
0.05 to 0.8%
0.8 to 2.0%
number of pump strokes
2
1
correction factor
1
2.5
samplingtime
2 minutes per pumpstroke
detectinglimit
0.003% (n=2)
colorchange
orange → darkgreen
reactionprinciple
ch3coch3 + k2cr2o7 + h2so4 + h2o → cr2(so4)3
coefficient ofvariation 10%(for 0.01 to 0.2 %), 5% (for 0.2 to 0.8 %)
shelflife 3years
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
sulfurdioxide
500 ppm plus error
produce greenstain
hydrogensulfide
500ppm
plus error
produce darkgreen
alcohols, esters,ketones
- plus error
produce dark greenstain
propane
0.2%
yes
produce dark greenfor whole layer
aromatic hcs.
500ppm
plus error
produce darkgreen
othersubstance measurable with this detector tube
substance
correction factor
pump strokes
measuring range
cyclohexene
1.0
1
0.05 to0.8%
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
500 ppm 750ppm 2.1to 13%