Gastec 273 Chromium (VI) Ion (Cr6+) in Solution detector tube (0.5 ~ 50 mg/L)
Manufacturer: Gastec Model: 273 - Request a Quotation
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Indicator: 1 ~ 50 mg/L
Measuring Range: 0.5 ~ 50 mg/L
Sampling Time: 2 minute
Colour Change: White → Yellow
Reaction Principle: Cr6+ + Pb(CH3COO)2 → PbCrO4
Nr. of tests: 10
Details
Performance
| Measuring Range | 0.5 to 50 mg/L |
| Sampling Time | 2 minutes |
| Detecting Limit | 0.4 mg/L |
| Colour Change | White → Yellow |
| Reaction Principle | Cr6+ + Pb(CH3COO)2 → PbCrO4 |
| 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 |
| Cl- | ≧ 20 mg/L | + | No |
| CH3COO- | ≧ 20 mg/L | + | No |
| NO3- | ≧ 30 mg/L | + | No |
| S2- | ≧ 0.5 mg/L | Unclear | Brown ( ≧ 0.5 mg/L ) |
| SO42- | ≧ 10 mg/L | + | No |
| PO43- | ≧ 5 mg/L | + | No |
Detector tubes for dissolved substances
(i.e. in solution).
(i.e. in solution).
|
Dissolved sulphide detector tube
211H / 211M / 211 / 211LL
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 |
Liquid detector tube
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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.
* Adjustment for pH is required when measuring with liquid detector tubes.
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