Vạch chỉ thị: 5 ~ 100 ppm
Thang đo: 5 ~ 100 ppm, bơm 1 lần
Thời gian lấy mẫu: 30 giây mỗi lần bơm
Chuyển đổi màu: Pink → Yellow to Brown (hồng sang vàng tới nâu)
Phương trình phản ứng: 2RNH2 + H2SO4 → (RNH3)2SO4
Hệ số biến đổi: 10% (5 ~ 20 %), 5% (20 ~ 100 %)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
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 |
| - |
- |
- |
