氯乙烯CH2=CHCl气体检测管132SA VINYL CHLORIDE 0.05-1.0% 返回列表页

氯乙烯CH2=CHCl气体检测管132SA VINYL CHLORIDE 0.05-1.0%

Tube 32SA
1. PERFORMANCE
1） Measuring range ：0.05-1.0％
Number of pump strokes 1（100ml）
2） Sampling time ：2 minutes/1 pump stroke
3） Detectable limit ：10 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 ：Brownish orange→Brownish green
2. RELATIVE STANDARD DEVIATION
RSD-low：10％　RSD-mid.：5％　RSD-high：5％
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH2＝CHCI＋Cr6＋＋H2SO4→Cr3＋
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
0.9
0.7
0.8
1.0
0.6
0.5
0.4
0.3
0.2
0.1
0.05
%
132SA VINYL CHLORIDE
Substance Interference ppm Coexistence
Whole layer is discoloured Whole reagent is discoloured to
Acetylene to Brown. 3％ gBirvoewnn. and higher readings are
Propane 〃0.2％ 〃
Other organic gases or vapours
except Halogenated hydrocar- Similar stain is produced. 50 Higher readings are given.