Gastec 180 Quick-measuring Detector tubes Amines R-NH2 (5 ~ 100 ppm)
ManufacturerGastec(View more products from this manufacturer)
Model180
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Indicator: 5 ~ 100 ppm
Measuring Range: 5 ~ 100 ppm, Number of Pump Strokes 1
Sampling Time: 30 seconds per pump stroke
Colour Change: Pink → Yellow to Brown
Reaction Principle: 2RNH2 + H2SO4 → (RNH3)2SO4
Coefficient of Variation: 10% (for 5 to 20 %), 5% (for 20 to 100 %)
Nr. of tests: 10
Pump: GV-100S/110S
Performance
| Measuring Range | 5 to 100 ppm |
| Number of Pump Strokes | 1 |
| Correction Factor | 1 |
| Sampling Time | 30 seconds per pump stroke |
| Detecting Limit | 0.5 ppm (n=1) |
| Colour Change | Pink → Yellow to Brown |
| Reaction Principle | 2R NH2 + H2SO4 → (RNH3)2SO4 |
| Coefficient of Variation | 10% (for 5 to 20 %), 5% (for 20 to 100 %) |
| Shelf Life | 3 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 |
| Aniline, Hydrazine, Pyridine | + | Yellow to Brown | |
| Amidos | No | No | |
| Amines, Ammonia | + | Yellow to Brown |
Amines measurable with this detector tube
| Substance | Pump Stroke | Correction Factor | Measuring Range (ppm) | Change colour to |
| Allylamine | 1 | 1.7 | 8.5 to 170 | Yellow |
| Ammonia | 1 | 0.3 | 1.5 to 30 | Yellow |
| n-Butylamine | 1 | 1.6 | 8 to 160 | Grayish red to Brown |
| tert-Butylamine | 1 | 1.1 | 5.5 to 110 | Pale brown |
| Di-n-Butylamine | 1 | 1.0 | 5 to 100 | Pale orange |
| Cyclohexylamine | 1 | 1.4 | 7 to 140 | Salmon pink |
| Diethylamine | 1 | 1.1 | 5.5 to 110 | Pale brown |
| Diethylethanolamine | 1 | 1.2 | 6 to 120 | Pale brown |
| Diisopropylamine | 1 | 1.0 | 5 to 100 | Pale orange |
| Dimethylethanolamine | 1 | 1.3 | 6.5 to 130 | Pale orange to Yellow |
| Dimethylamine | 1 | 1.1 | 5.5 to 110 | Salmon pink |
| Dimethylaminopropylamine | 1 | 1.6 | 8 to 160 | Grayish red |
| N,N-Dimethylethylamine | 1 | 0.8 | 4 to 80 | Yellow |
| Dipropylamine | 1 | 0.8 | 4 to 80 | Yellow |
| N-Ethylmorphorine | 1 | 1.0 | 5 to 100 | Yellow |
| Ethylamine | 1 | 1.0 | 5 to 100 | Yellow |
| Ethylenediamine | 1 | 2.8 | 14 to 280 | Yellow |
| n-Hexylamine | 1 | 1.8 | 9 to 180 | Pale orange |
| Isopropylamine | 1 | 1.1 | 5.5 to 110 | Salmon pink |
| Methylamine | 1 | 1.0 | 5 to 100 | Pale brown to Yellow |
| N-Methylmorpholine | 1 | 1.0 | 5 to 100 | Yellow |
| N-Methyl pyrrolidone | 1 | 2.7 | 13.5 to 270 | White |
| Monoethanolamine | 3 | 1.4 | 7 to 140 | Yellow |
| Morpholine | 1 | 1.8 | 9 to 180 | Yellow |
| Propylamine | 1 | 1.2 | 6 to 120 | Salmon pink |
| Propyleneimine | 1 | 1.1 | 5.5 to 110 | Yellow |
| Tetramethylenediamine | 1 | 1.7 | 8.5 to 170 | Purple to Yellow |
| Triethylamine | 1 | 0.9 | 4.5 to 90 | Yellow |
| Trimethylamine | 1 | 0.7 | 3.5 to 70 | Yellow |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
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