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Pool Line 470 mV ORP Test Solution (500 mL) - HI70224L

SKU: HI70224L Categories , ,

HI70224L Pool Line ORP Test Solution is a high-quality standard made from reagent grade chemicals and used to test platinum and gold ORP electrodes. Hanna test solutions have the lot number and expiration date clearly marked on the label. The 500 mL bottle is air tight with a tamper-proof seal to ensure the quality of the solution.

  • ORP 470 mV ±10 mV @ 25℃ test solution
  • 500 mL air tight bottle with tamper-proof seal to ensure quality
  • Diagnostic aid for troubleshooting ORP electrodes


Oxidation-reduction is a process by which a molecule or ion loses or gains electrons. This occurs most readily in swimming pool, hot tubs, and spas where an oxidizer, such as chlorine, is added to the water to destroy contaminants. The higher the ORP value, the greater the sanitizing power of the water.

HI70224L is an ORP test solution designed for testing the performance of ORP electrodes. When the ORP electrode is placed in the test solution the reading obtained should be close to the 470 mV value. This solution allows users to quickly see if their electrodes are reading correctly. Using this as a diagnostic tool, users can then decide if the ORP electrode needs to be cleaned, polished, and conditioned. Test solutions are produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature-controlled environment. 

The HI70224L bottle is labeled with:

  • Product code
  • Lot number
  • Expiration date

Air tight bottle with tamper-proof seal

  • Ensures quality and freshness of solution

Additional information

Weight 0.45 kg



SKU HI70224L
Name Pool Line 470 mV ORP Test Solution (500 mL) – HI70224L
Description ORP test solution
ORP Value @ 25°C 470 mV ±10 mV
Package Bottle
Quantity 1
Size 500 mL


Pool Line 470 mV ORP Test Solution (500 mL) – HI70224L