| Performance |
Measuring Range | 0.5 to 1% | 1 to 10% | 10 to 20% |
Number of Pump Strokes | 2 | 1 | 1/2 |
Correction Factor | 1/2 | 1 | 2 |
Sampling Time | 1 minute per pumpstroke | ||
Detecting Limit | 0.1% (n=2) | ||
Color Change | White → Purple | ||
Reaction Principle | CO2 + N2H4 → NH2 | ||
| Coefficient ofVariation | 10% (for1 to 3 %), 5% (for 3 to 10 %) | ||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity | Unnecessary | ||
| Store the tubes at cool and darkplace. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Ammonia | - | No effect | Nodiscoloration |
CarbonMonoxide | - | No effect | Nodiscoloration |
| Chlorine | - | No effect | Nodiscoloration |
| Hydrogen sulfde | - | No effect | Nodiscoloration |
Hydrogenchloride | - | No effect | Nodiscoloration |
Nitrogenoxides | - | No effect | Nodiscoloration |
Sulfurdioxide | - | No effect | Nodiscoloration |
Amines | - | No effect | Nodiscoloration |
Organicsolvents | - | No effect | Nodiscoloration |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 5000ppm | 30000ppm | - |
NH
