简单介绍： 一氧化碳气体检测管1hh carbon monoxide,measuring range 1 to 2% 2 to 40% number of pump strokes 1 1/2 correction factor 1/2 1 sampling time 1 minute per 1/2 pump stroke det......
一氧化碳气体检测管1hh carbon monoxide 产品详情
详情介绍：
一氧化碳气体检测管1hh carbon monoxide
carbon monoxide3coperformance
measuringrange
1 to 2%
2 to 40%
number of pump strokes
1
1/2
correctionfactor
1/2
1
samplingtime
1 minute per 1/2 pumpstroke
detectinglimit
0.5% (n=1)
colorchange
white → blackishbrown
reactionprinciple
5co +i2o5 +h2s2o7 → i2
coefficient of variation 10% (for 2 to 15 %), 5% (for 15 to 40 %)
shelflife 3years
correctionsfor
temperature & humidity unnecessary
store the tubes at cool and darkplace.
possible coexisting substances and theirinterferences (note)
substance
concentration
interference
change color by itself
acetylene
0.2%
puls error
produce darkbrown
olefines
(ethylene, propylene)
2/3
puls error
produce brownstain
butane
1%
puls error
produce palebrown
for whole layer
propane
20%
pulserror
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
25 ppm - 12.5 to 74%