Indicator: 0.2~1.5ppm
Measuring Range:
+ 0.04 to 0.1 ppm, Number of Pump Strokes 10
+ 0.1 to 1.5 ppm, Number of Pump Strokes 5
+ 1.5 to 2.4 ppm, Number of Pump Strokes 3
+ 2.4 to 10 ppm, Number of Pump Strokes 1
Sampling Time: 1.5 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle: AsH3 + 3HgCl2 → As(HgCl)3 + 3HCl, HCl + Basic compound → chloride compounds
Coefficient of Variation: 10% (for 0.1 to 0.5 ppm), 5% (for 0.5 to 1.5 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Details
Catalog
Manual
Manual tube
Performance
Measuring Range |
0.04 to 0.1 ppm |
0.1 to 1.5 ppm |
1.5 to 2.4 ppm |
2.4 to 10 ppm |
|
Number of Pump Strokes |
|
Correction Factor |
|
Sampling Time |
1.5 minutes per pump stroke |
Detecting Limit |
0.02 ppm (n=10) |
Colour Change |
Yellow → Red |
Reaction Principle |
Arsine react with mercuric chloride to produce hydrogen chloride. The indicator of the tube turns to red. AsH3 + 3HgCl2 → As(HgCl)3 + 3HCl HCl + Basic compound → chloride compounds |
Coefficient of Variation |
10% (for 0.1 to 0.5 ppm), 5% (for 0.5 to 1.5 ppm) |
Shelf Life |
2 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 colour by itself to |
Hydrogen chloride |
|
No |
No |
Diborane |
|
No |
No |
Phosphine |
1/10 time |
+ |
Red |
Calibration gas generation |
High pressure gas cylinder method |
TLV-TWA |
TLV-STEL |
Explosive range |
0.005 ppm (2014) |
- |
- |