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氨气气体检测管3D NH3 Ammonia
氨气气体检测管3D NH3 Ammonia，Measuring Range 2.5 to 1000 ppm Sampling Hours 0.5 to10 hours Detecting Limit 0.5 ppm (10 hours)氨气气体检测管价格，氨气气体检测管3D NH3 Ammonia
氨气气体检测管3D NH3 Ammonia的详细介绍
氨气气体检测管3D NH3 Ammonia Ammonia No.3D
NH3
| Performance |
|
Measuring Range |
2.5 to 1000ppm |
|
Sampling Hours |
0.5 to10 hours |
|
Detecting Limit |
0.5 ppm (10hours) |
|
Color Change |
Purple →Yellow |
|
Reaction Principle |
2NH3 + H2SO4 → (NH4)2SO4 |
| Coefficient ofVariation |
10%(for 25 to 500 ppm-hr) |
| ShelfLife | 3 Year |
| Correctionsfor temperature & humidity |
Temperature correction isnecessary |
| Store the tubes atcool and dark place. | |
| Possible coexisting substances and theirinterferences | (NOTE) |
|
Substance |
Interference |
Change colour byitself to |
|
Amines,Hydrazine |
+ |
Yellow |
| Aromatic amines |
No |
No |
| Othersubstance measurable with this detectortube |
|
Substance |
CorrectionFactor |
SamplingTime |
MeasuringRange |
|
Dimethylamine |
0.75 |
0.5 to 10hours |
1.9 to 750 ppm |
|
N,N-Dimethylethylamine |
1.6 |
0.5 to 10 hours |
4 to 1600 ppm |
|
Hydrazine |
0.65 |
0.5 to 10 hours |
1.6 to 650 ppm |
|
Triethylamine |
2.1 |
0.5 to 10 hours |
5.3 to 2100ppm |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25 ppm | 35ppm | 15 to28% |