*检测管12h hydrogen cyanide 产品详情
详情介绍：
*检测管12h hydrogen cyanide hydrogen cyanide 2h hcnperformance
measuring range
0.05 to 1.6%
number of pump strokes
1
correction factor
1
sampling time
1 minute per pump stroke
detecting limit
0.005% (n=1)
color change
yellow → white
reaction principle
hcn+na2pd(so3)2 → white reaction product
coefficient of variation 10% (for 0.05 to 0.4 %), 5% (for 0.4 to 2 %)
shelf life 3 years
corrections for
temperature & humidity temperature correction is necessary
store the tubes at cool and dark place.
possible coexisting substances and their interferences (note)
substance
concentration
interference
change color by itself
carbon monoxide
- plus error
produces blackish brown
hydrogen sulfide
- plus error
produces blackish brown
ethylene
- plus error
produces blackish brown
other substance measurable with this detector tube
calibration gas generation high pressure gas cylinder method
tlv-twa tlv-stel explosive range
- c 4.7 ppm 5.6 to 40%