简单介绍： *气体检测管14l hydrogen chloride hcl，measuring range 0.2 to 1 ppm 1 to 20 ppm 20 to 76 ppm number of pump strokes 2 to 5 1 1/2 correction factor 1/2 to 1/5 1 3.8 sa......
*气体检测管14l hydrogen chloride 产品详情
详情介绍：
*气体检测管14l hydrogen chloride
hydrogen chloride 4lhclperformance
measuring range
0.2 to 1 ppm
1 to 20 ppm
20 to 76 ppm
number of pump strokes
2 to 5
1
1/2
correction factor
1/2 to 1/5
1
3.8
sampling time
1 minute per pump stroke
detecting limit
0.05 ppm (n=5)
color change
yellow → pink
reaction principle
hydrogen chloride reacts with indicator to produce pink stain.
hcl + indicator → chemical reaction compound
coefficient of variation 10% (for 1 to 5 ppm), 5% (for 5 to 20 ppm)
shelf life 3 years
corrections for
temperature & humidity unnecessary
store the tubes at cool and dark place.
possible coexisting substances and their interferences (note)
substance
concentration
interference
change color by itself
chlorine
1/2
plus error
produces pink stain
nitric acid
1/10
plus error
produces pink stain
sulfur dioxide
10 times
plus error
produces pink stain
nitrogen dioxide
5 times
plus error
produces pink stain
other substance measurable with this detector tube
calibration gas generation high pressure gas cylinder method
tlv-twa tlv-stel explosive range
- c 2ppm -