简单介绍： 一氧化碳气体检测管1lk carbon monoxide，一氧化碳气体检测管1lk co carbon monoxide，measuring range 5 to 100 ppm 100 to 300 ppm 300 to 600 ppm number of pump strokes 3 1 1/2 correction......
一氧化碳气体检测管1lk carbon monoxide 产品详情
详情介绍：
一氧化碳气体检测管1lk carbon monoxide
carbonmonoxidelkcoperformance
measuringrange
5 to 100 ppm
100 to 300 ppm
300 to 600 ppm
number of pumpstrokes
3
1
1/2
correctionfactor
1
3
6
samplingtime
3 minutes per pumpstroke
detectinglimit
0.5 ppm (n=3)
color change white → palebrown
reactionprinciple
5co + i2o5 + h2s2o7 → i2
coefficient of variation 10% (for5 to 20 ppm), 5% (for 20 to 100 ppm)
shelflife 3years
corrections for
temperature & humidity unnecessary
store the tubes at cool and dark place.
possible coexisting substances and theirinterferences (note)
substance
concentration
interference
change color by itself
ammonia
- no effect
nodiscoloration
carbondioxide
- no effect
nodiscoloration
hydrogensulfide
- no effect
nodiscoloration
nitrogenoxides
- no effect nodiscoloration
sulfurdioxide
- no effect
nodiscoloration
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
25 ppm - 12.5 to 74%