
Hanna Instruments HI70442L 1500 mg-L (ppm) TDS Calibration Solution, 500mL Bottle
Technical Details
| Manufacturer | Hanna Instruments |
| Model Number | HI70442L |
| TDS Value | 1500 mg/L (ppm) at 25°C |
| Solution Base | High-quality potassium chloride |
| Bottle Volume | 500mL |
| Conversion Factor | 0.65 ppm = 1 µS/cm (approx.) |
| Traceability | NIST-standardized potassium chloride |
| Packaging | Light and air-resistant bottle |
Calibration Procedure
- Remove the protective cap from your TDS meter probe and rinse the electrode with distilled or deionized water
- Pour a small amount of HI70442L solution into a clean container and immerse the probe to the recommended depth
- Follow your meter's calibration procedure to set the 1500 ppm reference point, allowing the reading to stabilize before confirming
- Rinse the probe thoroughly with distilled water after calibration and store according to manufacturer guidelines
Meter Compatibility
The HI70442L 1500 ppm calibration solution is compatible with all Hanna Instruments TDS meters and most other brands that accept standard potassium chloride-based calibration standards. This mid-range value is ideal for calibrating meters used in residential water quality testing, aquarium monitoring, hydroponics, and light commercial applications where TDS readings typically fall between 500 and 3000 ppm. The 500mL bottle provides enough solution for dozens of calibrations when proper technique is used.
Technical Details
| Manufacturer | Hanna Instruments |
| Model Number | HI70442L |
| TDS Value | 1500 mg/L (ppm) at 25°C |
| Solution Base | High-quality potassium chloride |
| Bottle Volume | 500mL |
| Conversion Factor | 0.65 ppm = 1 µS/cm (approx.) |
| Traceability | NIST-standardized potassium chloride |
| Packaging | Light and air-resistant bottle |
Calibration Procedure
- Remove the protective cap from your TDS meter probe and rinse the electrode with distilled or deionized water
- Pour a small amount of HI70442L solution into a clean container and immerse the probe to the recommended depth
- Follow your meter's calibration procedure to set the 1500 ppm reference point, allowing the reading to stabilize before confirming
- Rinse the probe thoroughly with distilled water after calibration and store according to manufacturer guidelines
Meter Compatibility
The HI70442L 1500 ppm calibration solution is compatible with all Hanna Instruments TDS meters and most other brands that accept standard potassium chloride-based calibration standards. This mid-range value is ideal for calibrating meters used in residential water quality testing, aquarium monitoring, hydroponics, and light commercial applications where TDS readings typically fall between 500 and 3000 ppm. The 500mL bottle provides enough solution for dozens of calibrations when proper technique is used.
Original: $42.87
-65%$42.87
$15.00Description
Technical Details
| Manufacturer | Hanna Instruments |
| Model Number | HI70442L |
| TDS Value | 1500 mg/L (ppm) at 25°C |
| Solution Base | High-quality potassium chloride |
| Bottle Volume | 500mL |
| Conversion Factor | 0.65 ppm = 1 µS/cm (approx.) |
| Traceability | NIST-standardized potassium chloride |
| Packaging | Light and air-resistant bottle |
Calibration Procedure
- Remove the protective cap from your TDS meter probe and rinse the electrode with distilled or deionized water
- Pour a small amount of HI70442L solution into a clean container and immerse the probe to the recommended depth
- Follow your meter's calibration procedure to set the 1500 ppm reference point, allowing the reading to stabilize before confirming
- Rinse the probe thoroughly with distilled water after calibration and store according to manufacturer guidelines
Meter Compatibility
The HI70442L 1500 ppm calibration solution is compatible with all Hanna Instruments TDS meters and most other brands that accept standard potassium chloride-based calibration standards. This mid-range value is ideal for calibrating meters used in residential water quality testing, aquarium monitoring, hydroponics, and light commercial applications where TDS readings typically fall between 500 and 3000 ppm. The 500mL bottle provides enough solution for dozens of calibrations when proper technique is used.












