Không cần dùng thêm bơm. cắm thẳng vào cốc dung dịch
Vạch chỉ thị: 2 ~ 10 mg/L
Thang đo: 1 ~ 10 mg/L
Thời gian lấy mẫu: 3 phút
Chuyển đổi màu: xanh nhạt sang trắng
Phương trình phản ứng: 2O3 + C16H10N2O2 → 2C8H5NO2 + 2O2
Số ống trong hộp: 10
Catalog
Performance
| Measuring Range |
(1) to 10 mg/L |
| Sampling Time |
3 minutes |
| Detecting Limit |
0.5 mg/L |
| Colour Change |
Pale blue → White |
| Reaction Principle |
Ozone react with indigo to produce chemical reaction products to discolour the reagent to white. 2O3 + C16H10N2O2 → 2C8H5NO2 + 2O2 |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Water 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 |
| H2O2 |
≧ 0.05 mg/l |
 |
No |
| ClO- |
≧ 5(Cl) mg/l |
 |
White for whole layer higher than 500mg/l (Not produce demarcation) |
| ≧ 500(Cl) mg/l |
|
| Acid (H+) |
|
+ |
No |
| Alkali (OH-) |
|
 |
No |
Detector tubes for dissolved substances
(i.e. in solution).
Dissolved sulphide detector tube
211H / 211M / 211 / 211LL

|
 |
Liquid detector tube
| Ozone: |
218 |
| Chloride ion: |
221L / 221LL |
| Mercury: |
271 |
| Hexavalent chromium: |
273 |
| Bivalent iron: |
281 |
| Copper: |
284 |
| Zinc: |
285 |
| Nicke: |
291 |
|
To measure, simply immerse the detector tube in a sample of liquid (placed in a beaker or other container). Anyone can measure concentrations quickly, easily and accurately on site.
* Adjustment for pH is required when measuring with liquid detector tubes.