简单介绍： 一氧化碳气体检测管1h carbon monoxide，number of pump strokes 2 1 1/2 correction factor 1/2 1 2 sampling time 1.5 minutes per pump stroke detecting limit 0.02%，一氧化碳气体检测管价格
一氧化碳气体检测管1h carbon monoxide 产品详情
详情介绍：
一氧化碳气体检测管1h carbon monoxide
carbon monoxidehcoperformance
measuring range
0.1 to 0.2%
0.2 to 5.0%
5.0 to10.0%
number of pumpstrokes
2
1
1/2
correctionfactor
1/2
1
2
sampling time
1.5 minutes per pumpstroke
detecting limit
0.02% (n=2)
color change
white → blackishbrown
reaction principle
5co + i2o5 + h2s2o7 → i2
coefficient ofvariation 10%(for 0.2 to 1.0 %), 5% (for 1.0 to 5.0 %)
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
0.3%
plus error
produce blackishbrown stain.
olefins
2/3 time
plus error
produce brownstain.
butane
1%
plus error produce pale brownfor whole layer
propane
20%
plus error nodiscoloration
hexane
0.3%
plus error produce pale brownfor whole layer
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
25 ppm - 12.5 to 74%