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正丁烷气体检测管 n-Butane CH3(CH2)2CH3 0.05-0.6% 221SA n-BUTANE
更新时间:2017-07-05
在线留言正丁烷气体检测管221SA n-Butane CH3(CH2)2CH3 0.05-0.6%
Tube No.221SA
1. PERFORMANCE
1) Measuring range :0.05-0.6%
Number of pump strokes 1(100ml)
2) Sampling time :4 minutes/1 pump stroke
3) Detectable limit :20 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Orange→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:15% RSD-high:15%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3(CH2)2CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
0.05
0.1
0.2
0.3
0.4
0.5
0.6
%
GAS To pump
221SA n-BUTANE
Substance Interference Coexistence
Toluene Similar stain is produced. Higher readings are given.
Hexane 〃〃
Trichloroethylene 〃〃
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