sulphur dioxide No.5D
Performance |
Measuring Range | 0.2 to 100 ppm |
Sampling Hours | 1 to 10 hours |
Detecting Limit | 0.1 ppm (10hours) |
Color Change | Green→ Yellow |
Reaction Principle | SO2 + BaCl2 + H2O 仺 BaSO3 + 2HCl |
Coefficient ofVariation | 10%(for 2 to 10 ppm-hr),5% (for 10 to 100 ppm-hr) |
ShelfLife | 3 Year |
Correctionsfor temperature & humidity | Unnecessary |
Store the tubes atcool and dark place. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Nitrogendioxide | - | No | |
Hydrogen sulphide |
| + | No |
Calibration gasgeneration | Diffusion tubemethod |
TLV-TWA | TLV-S | Explosive range |
2 ppm | 5 ppm | - |