Vạch chỉ thị: 1 ~ 30 ppm
Thang đo: 1 ~ 30 ppm, bơm 1 lần
Thời gian lấy mẫu: 4 phút mỗi lần bơm
Chuyển đổi màu: Trắng → hồng nhạt
Phương trình phản ứng: CO + Paradium Salt (White) → Pale pink product
Hệ số biến đổi: 10% ( 1 ~ 10 ppm), 5% ( 10 ~ 30 ppm)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Manual tube
Performance
| Measuring Range |
1 to 30 ppm |
| Number of Pump Strokes |
1 |
| Correction Factor |
1 |
| Sampling Time |
4 minutes per pump stroke |
| Detecting Limit |
0.5 ppm (n=1) |
| Colour Change |
White → Pale Pink |
| Reaction Principle |
CO + Paradium Salt (White) → Pale pink product |
| Coefficient of Variation |
10% (for 1 to 10 ppm), 5% (for 10 to 30 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 |
|
No |
No |
| sulphur dioxide |
1/20 time |
 |
No |
| Nitrogen dioxide |
1/20 time |
+ |
No |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 25 ppm |
- |
12.5 to 74% |