一氧化碳气体检测管1m carbon monoxide 产品详情
详情介绍：
一氧化碳气体检测管1m carbon monoxide
carbon monoxidemcoperformance
measuring range
0.05 to 0.1%
0.1 to 2.0%
2.0 to 4.0%
number of pumpstrokes
2
1
1/2
correctionfactor
1/2
1
2
sampling time
3 minutes per pumpstroke
detecting limit
0.01% (n=2)
color change
white → palebrown
reaction principle
5co + i2o5 + h2s2o7 → i2
coefficient ofvariation 10% (for0.1 to 0.5 %), 5% (for 0.5 to 2 %)
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
0.1%
plus error
produce blackishbrown stain.
olefins
2/3 time
plus error
produce pale brownstain.
butane
0.3%
plus error
produce pale brownfor whole layer
propane
10%
plus error
produce pale brownfor whole layer
hexane
0.1%
plus error
produce palebrown
othersubstance measurable with this detector tube
substance
correction factor
pump strokes
measuring range
gasoline
1
1
0.1 to2%
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
25 ppm - 12.5 to 74%