Vạch chỉ thị: 2 to 40 ppm
Thang đo:
+ 1 to 2 ppm, bơm 4 lần
+ 2 to 40 ppm, bơm 2 lần
+ 40 to 80 ppm, bơm 1 lần
Thời gian lấy mẫu: 30 giây mỗi lần bơm
Chuyển đổi màu: xanh tím nhạt sang vàng
Hệ số biến đổi: 10% (2 ~ 40 ppm)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
| 1 to 2 ppm |
2 to 40 ppm |
40 to 80 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
30 seconds per pump stroke |
| Detecting Limit |
0.5 ppm (n=4) |
| Colour Change |
Pale bluish purple → Yellow |
| Reaction Principle |
Acid gases react with detecting layer to produce yellow stain. |
| Coefficient of Variation |
10% (for 2 to 40 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes in dark and cool place |
Other substance measurable with this detector tube
| Substance |
Corrction |
No. of pump strokes |
Measuring Range |
| Hydrogen chloride |
4 |
2 |
8 to 160ppm |
| Chlorine |
0.35 |
2 |
0.7 to 14ppm |
| Nitric acid |
2.5 |
2 |
5 to 100ppm |
| sulphur dioxide |
0.75 |
2 |
1.5 to 30ppm |
| Nitrogen dioxide |
0.1 |
2 |
0.2 to 4ppm |
| Iodine |
0.06 |
2 |
0.12 to 2.4ppm |
| Calibration gas generation |
Diffusion tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| - |
- |
- |
