Measuring Range: 0.5~2%, Number of Pump Strokes 1
Sampling Time: 3 minutes per pump stroke
Colour Change: Yellow → Yellowish brown
Reaction Principle: H2 + Na2Pd(SO3)2 → Pd + Na2SO3 + H2SO3
Nr. of tests: 10
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
0.5 to 2.0 % |
| Number of Pump Strokes |
1 |
| Correction Factor |
1 |
| Sampling Time |
3 minutes per pump stroke |
| Detecting Limit |
0.5%(n=1) |
| Colour Change |
Yellow → Yellowish brown |
| Reaction Principle |
H2 + Na2Pd(SO3)2 → Pd + Na2SO3 + H2SO3
|
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes at cool and dark place. |
Special note
This is not a direct reading tube. Concentrations should be determined by using the concentration chart attached with this tube.

Possible coexisting substances and their interferences
(NOTE)
| Substance |
Interference |
Change colour by itself to |
| Carbon monoxide, Hydrogen sulphide |
Produce 2 layers (Yellowish brown and blackish brown) |
Dark brown |
| Acetylene |
Produce 2 layers (Yellowish brown and blackish brown) |
Darkh brown |
| Ethylene |
+ |
Yellowish brown |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| - |
- |
4 to 75% |