Vạch chỉ thị: 50 to 500 ppm
Thang đo:
+ 25 ~ 50pm, bơm 2 lần
+ 50 ~ 500 ppm, bơm 1 lần
+ 500 ~ 1000 ppm, bơm 1/2 lần
Thời gian lấy mẫu: 45 giây mỗi lần bơm
Chuyển đổi màu: Trắng sang đỏ son
Phương trình phản ứng: Cl2 + o - Tolidine → Vermilion products
Hệ số biến đổi: 10% ( 50 ~ 100 ppm), 5% (100 ~ 500 ppm)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
| 25 to 50pm |
50 to 500 ppm |
500 to 1000 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
5 ppm (n=2) |
| Colour Change |
White → Vermilion (reddish orange) |
| Reaction Principle |
Cl2 + o - Tolidine → Vermilion products |
| Coefficient of Variation |
10% (for 50 to 100 ppm), 5% (for 100 to 500 ppm) |
| Shelf Life |
3 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 |
| Bromine |
|
+ |
Vermilion |
| Chlorine dioxide |
|
+ |
Vermilion |
| Iodine |
|
+ |
Vermilion |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| Chlorine dioxide |
0.5 |
1 |
25 to 250 ppm |
| Calibration gas generation |
Permeation tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 0.5 ppm |
1 ppm |
- |
