简单介绍： 正己烷气体检测管102l hexane ch3(ch2)4ch3，measuring range 10 to 50 ppm 50 to 1200 ppm number of pump strokes 5 1 correction factor 1/5 1 sampling time 2 minutes，正己烷气体检测管......
正己烷气体检测管102l hexane 产品详情
详情介绍：
正己烷气体检测管102l hexane hexane 02lch3(ch2)4ch3
performance
measuring range
10 to 50 ppm
50 to 1200 ppm
number of pump strokes
5
1
correction factor
1/5
1
sampling time
2 minutes per pumpstroke
detecting limit
1 ppm (n=5)
color change
orange → darkgreen
reaction principle
ch3(ch2)4ch3 + k2cr2o7 + h2so4 → cr3+
coefficient ofvariation 10% (for50 to 400 ppm), 5% (for 400 to 1200 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
acetylene,alcohols
- plus error
produce darkgreen
aromatic hcs
- plus error
produce darkgreen
esters,ethers
- plus error
produce darkgreen
hydrogensulfide
- plus error
produce darkgreen
organicsolvents (c3)
- plus error
produce darkgreen
sulfurdioxide
- plus error
produce darkgreen
othersubstance measurable with this detector tube
substance
correction
no. of pumpstrokes
measuringrange
acrylonitrile
factor: 12
1
0.06 to 1.14%
tert-butylalcohol
factor: 10
2
0.05 to 1.2%
chlorocyclohexane
factor: 1
2
50 to 1200 ppm
cyclohexane
factor: 1.2
1
60 to 1440ppm
tube 102l reading(n=2)
50
100
200
400
600
800
1000
1200
diisobutyl ketoneconc. (%)
0.2
0.3
0.5
0.7
0.8
0.9
1.0
1.05
calibration gasgeneration diffusion tubemethod
tlv-twa tlv-stel explosive range
50ppm - 1.1 to7.5%