简单介绍： 二氧化碳气体检测管2hh carbon dioxide，measuring range 2.5 to 5% 5 to 40% number of pump strokes 1 1/2 (50 ml) correction factor 1/2 1 sampling，二氧化碳气体检测管价格
二氧化碳气体检测管2hh carbon dioxide 产品详情
详情介绍：
二氧化碳气体检测管2hh carbon dioxide
二氧化碳气体检测管2hh carbon dioxide carbon dioxide no.2hhco2performance
measuring range
2.5 to 5%
5 to 40%
number of pump strokes
1
1/2 (50 ml)
correction factor
1/2
1
sampling time
30 seconds. for1/2 pump stroke(50ml)
detecting limit
0.5% (n=1)
color change
orange →yellow
reaction principle
co2 + n2h4 → nh2nhcooh
coefficient ofvariation 10% (for5 to 10 %), 5% (for 10 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
ammonia
- no effect
nodiscoloration
carbonmonoxide
- no effect
nodiscoloration
hydrogenchloride
- no effect
nodiscoloration
nitrogenoxides
- no effect
nodiscoloration
sulfurdioxide
- no effect
nodiscoloration
amines
- no effect
nodiscoloration
organicsolvents
- no effect
nodiscoloration
chlorine
- no effect
nodiscoloration
hydrogensulfide
- no effect
nodiscoloration
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
5000ppm 30000ppm -