Vạch chỉ thị: 0.1 ~ 3.0%
Thang đo: 0.05 ~ 3.0%, bơm 1 lần
Thời gian lấy mẫu: 45 giây mỗi lần bơm
Chuyển đổi màu: cam sang xanh lá
Phương trình phản ứng: C2H4O+ Cr6+ + H2SO4 → Cr3+
Hệ số biến đổi: 10% (0.05 ~ 1.0 %), 5% (1.0 ~ 3.0 %)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
(0.05 ) to 3.0% |
| Number of Pump Strokes |
1 |
| Correction Factor |
1 |
| Sampling Time |
45 seconds per pump stroke |
| Detecting Limit |
0.02% (n = 1) |
| Colour Change |
Orange → Green |
| Reaction Principle |
C2H4O+ Cr6+ + H2SO4 → Cr3+ |
| Coefficient of Variation |
10% (for 0.05 to 1.0 %), 5% (for 1.0 to 3.0 %) |
| 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 |
| Aromatic HCs |
|
+ |
Green |
| Alcohols, Esters, Ethers |
|
+ |
Green |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| 1,4-Dioxane |
Factor: 2.0 |
1 |
0.1 to 6.0% |
| Propylene oxide |
Factor: 1.3 |
1 |
0.065 to 3.9% |
| Calibration gas generation |
Static gas dilution method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 1 ppm(2014) |
- |
3.0 to 100% |
