| R-NH2 |
 |
Performance
| Measuring Range |
0.5 to 10 ppm |
| Number of Pump Strokes |
1 |
| Correction Factor |
1 |
| Sampling Time |
1 minutes per pump stroke |
| Detecting Limit |
0.1 ppm (n=1) |
| Colour Change |
Pink → Yellow to Pale orange |
| Reaction Principle |
2R NH2 + H2SO4 → (RNH3)2SO4 |
| Coefficient of Variation |
10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Ammonia |
|
+ |
Yellow |
| Aniline, Hydrazine, Pyridine |
|
+ |
Yellow to brown discolouration |
| Amines, Amidos |
|
+ |
Yellow to brown discolouration |
Other substance measurable with this detector tube
| Substance |
Pump Stroke |
Correction Factor |
Measuring Range (ppm) |
Change colour to |
| Allylamine |
1 |
0.8 |
0.4 to 8 |
Yellow or Pale orange |
| Butylamine |
1 |
1.1 |
0.55 to 11 |
Yellow or Pale orange |
| Cyclohexylamine |
1 |
1.0 |
0.5 to 10 |
Yellow or Pale orange |
| Di-n-butylamine |
1 |
0.8 |
0.4 to 8 |
Yellow or Pale orange |
| Diethylamine |
1 |
0.9 |
0.45 to 9 |
Yellow or Pale orange |
| Diethylaminoethanol |
1 |
1.2 |
0.6 to 12 |
Yellow or Pale orange |
| Diethylenetriamine |
1 |
1.9 |
0.95 to 19 |
Grayish purple |
| Diisopropylamine |
1 |
0.6 |
0.3 to 6 |
Yellow or Pale orange |
| Dimethylamine |
1 |
0.9 |
0.45 to 9 |
Yellow or Pale orange |
| 2-Dimethylaminoethanol |
1 |
1.3 |
0.65 to 13 |
Yellow or Pale orange |
| Dimethylaminopropylamine |
1 |
1.2 |
0.6 to 12 |
Yellow or Pale orange |
| N,N-Dimethylethylamine |
1 |
0.6 |
0.3 to 6 |
Yellow or Pale orange |
| Dipropylamine |
1 |
0.7 |
0.35 to 7 |
Yellow or Pale orange |
| Ethanolamine |
1 |
3.9 |
1.95 to 39 |
Grayish purple |
| Ethylamine |
1 |
0.9 |
0.45 to 9 |
Yellow or Pale orange |
| Ethylenediamine |
1 |
1.8 |
0.9 to 18 |
Yellow or Pale orange |
| N-Ethylmorpholine |
1 |
0.6 |
0.3 to 6 |
Yellow or Pale orange |
| Hexamethylenediamine |
1 |
3.1 |
1.55 to 31 |
Grayish purple |
| Hexylamine |
1 |
1.3 |
0.65 to 13 |
Yellow or Pale orange |
| Isopropylamine |
1 |
0.9 |
0.45 to 9 |
Yellow or Pale orange |
| Methylamine |
1 |
1.0 |
0.5 to 10 |
Yellow or Pale orange |
| Morpholine |
1 |
1.0 |
0.5 to 10 |
Yellow or Pale orange |
| N-Methylmorpholine |
1 |
0.6 |
0.3 to 6 |
Yellow or Pale orange |
| Pentamethylenediamine |
1 |
1.5 |
0.75 to 15 |
Grayish purple |
| Propylamine |
1 |
1.0 |
0.5 to 10 |
Yellow or Pale orange |
| Propyleneimine |
1 |
0.7 |
0.35 to 7 |
Yellow or Pale orange |
| Tetramethylenediamine |
1 |
1.6 |
0.8 to 16 |
Grayish purple |
| Triethylamine |
1 |
0.6 |
0.3 to 6 |
Yellow or Pale orange |
| Trimethylamine |
1 |
0.5 |
0.25 to 5 |
Yellow or Pale orange |
| Calibration gas generation |
Permeation tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| - |
- |
- |
