

🧪 Calibrate like a pro — never second-guess your conductivity again!
The Oakton Conductivity and TDS Standard 23 S (500 mL) is a precision calibration solution designed for professional-grade conductivity and TDS meter calibration. Manufactured under strict ISO 9000 guidelines and traceable to NIST standards, it features printed conversion and temperature correction values for ease of use. Ideal for labs and field professionals seeking reliable, consistent measurements with a convenient 500 mL volume and optimized shelf life.
| Manufacturer | COLE-PARMER |
| Part number | AO-00653-23 |
| Item Weight | 454 g |
| Package Dimensions | 15.24 x 7.62 x 7.62 cm; 453.59 g |
| Item model number | AO-00653-23 |
| Colour | Clear |
| Item Package Quantity | 1 |
| Measurement System | US |
| Batteries Required? | No |
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