Phosgene Detection Tubes (0.05 to 20 ppm)
Gastec Detection Tube No. 16 measures Phosgene with a Range of 0.05 to 20 ppm.
- Measuring Range:
- 0.05 to 0.1 ppm
- 0.1 to 5 ppm
- 5 to 20 ppm
- Number of Pump Strokes: 10, 5, 1
- Correction Factor: 1/2, 1, 4
- Sampling time: 1 minute per pump stroke
- Detecting Limit: 0.01 ppm (10 pump strokes)
- Changes from White to Yellow
- Corrections for temperature & humidity: Temperature correction is necessary
- Reaction Principle:
- COCl2 + (CH3)2NC6H4CHO → (CH3)2NC6H4CHCl2 + CO2
- (CH3)2NC6H4CHCl2 + (C6H5)2NH → Reaction Product
- Relative Standard Deviation: 10% (for 0.1 to 1 ppm), 5% (for 1 to 5 ppm)
- 1.5 Year Shelf Life (in the refrigerator)
- Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
Possible coexisting substances and their interferences:
Substance |
Concentration |
Interference |
Changes color by itself to |
Chlorine |
≧ 1/2 |
+ |
Yellow |
Hydrogen chloride |
≧ 1/10 |
+ |
Yellow |
Nitrogen dioxide |
≧ 1/5 |
+ |
Yellow |
Phosgene Detection Tubes (0.05 to 20 ppm)
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