Hanna Instruments HI721-11 / 721-11 | Iron Checker HC Calibration Check Set
Validate the accuracy of yourHI721 Iron Checker® HCwith theHI721-11 Calibration Check Set. This set provides a simple, reliable way to ensure your colorimeter is producing accurate readings. Each set includes one sealed cuvette for zero iron (blank) and one sealed cuvette for a known iron standard value, helping you verify your device is properly calibrated.
- Designed specifically for the HI721 Iron Checker® HC
- Includes two sealed cuvettes: zero iron and standard iron solution
- Standard value: 1.00 ± 0.06 ppm iron at 25 °C
- Reusable with long shelf life stability
- Supplied with a Certificate of Analysis
- Lot number, reference values, and expiration date printed for traceability
More Information
| Brand | Hanna Instruments |
| Product Type | Calibration Check Set |
| Compatibility | HI721 Iron Checker® HC |
| Contents | 2 sealed cuvettes (blank + standard) |
| SKU / MPN | HI721-11 / 721-11 |
| Use Case | Validation and calibration of Iron Checker accuracy |
Shop more Aquarium Testing Supplies and Hanna Instruments.
FAQ
- Do I need this for regular testing?Not for routine tests — this is for validating accuracy and calibration.
- How often should I validate?Recommended every few months or whenever accuracy is in doubt.
- Can I reuse the cuvettes?Yes, they are stable and reusable for multiple validation checks.
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