Vạch chỉ thị: 0.2~1.5ppm
Thang đo:
+ 0.04 ~ 0.1 ppm, bơm 10 lần
+ 0.1 ~ 1.5 ppm, bơm 5 lần
+ 1.5 ~ 2.4 ppm, bơm 3 lần
+ 2.4 ~ 10 ppm, bơm 1 lần
Thời gian lấy mẫu: 1.5 phút mỗi lần bơm
Chuyển đổi màu: vàng sang đỏ
Phương trình phản ứng: AsH3 + 3HgCl2 → As(HgCl)3 + 3HCl, HCl + Basic compound → chloride compounds
Hệ số biến đổi: 10% (0.1 ~ 0.5 ppm), 5% (0.5 ~ 1.5 ppm)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Manual tube
Performance
| Measuring Range |
| 0.04 to 0.1 ppm |
0.1 to 1.5 ppm |
1.5 to 2.4 ppm |
2.4 to 10 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
1.5 minutes per pump stroke |
| Detecting Limit |
0.02 ppm (n=10) |
| Colour Change |
Yellow → Red |
| Reaction Principle |
Arsine react with mercuric chloride to produce hydrogen chloride. The indicator of the tube turns to red. AsH3 + 3HgCl2 → As(HgCl)3 + 3HCl HCl + Basic compound → chloride compounds |
| Coefficient of Variation |
10% (for 0.1 to 0.5 ppm), 5% (for 0.5 to 1.5 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Hydrogen chloride |
|
No |
No |
| Diborane |
|
No |
No |
| Phosphine |
1/10 time |
+ |
Red |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 0.005 ppm (2014) |
- |
- |