简单介绍： 丁烷气体检测管104 c4h10 butane ，measuring range 25 to 1400 ppm number of pump strokes 1 correction factor 1 sampling time 4 minutes per pump stroke detecting limit 5 pp......
丁烷气体检测管104 c4h10 butane 产品详情
详情介绍：
丁烷气体检测管104 c4h10 butane
butane04c4h10performance
measuring range
25 to 1400 ppm
number of pump strokes
1
correction factor
1
sampling time
4 minutes per pumpstroke
detecting limit
5 ppm (n=1)
color change
orange → darkgreen
reaction principle
c4h10 + cr6++ h2so4 → cr3+
coefficient ofvariation 10%(for 25 to 400 ppm), 5% (for 400 to 1400 ppm)
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
organicsolvents
- plus error
dark green
othersubstance measurable with this detector tube
substance
correction factor
pump strokes
measuring range
isobutane
factor : 2.2
1
55 to 3080 ppm
pentane
factor : 1.2
1
30 to 1680ppm
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
800ppm - 1.6 to 8.5%