Atlas Scientific ORP calibration solution, also know as Zobells solution maintains a constant 225mv, perfect for ORP probe calibration. Storing it below 16°C or 60°F will greatly extend its shelf life.

• 2x ORP 225mV Calibration Solution pouches

• 1x ORP storage solution pouch

• 225 ±2.0mV at 25°C

• 20ml each pouch

• Works with any ORP Probe

• Standardized against NIST-certified references

• Keep refrigerated for longer life

It may happen that you want to return an order. Because the product does not suit you, maybe there is another reason why you would not want the order. Whatever the reason, you have the right to cancel your order up to 14 days after receipt without giving a reason.

After cancellation you have 14 days to return your product. You will then be credited 85% order amount excluding shipping. For more information click the following link: /pages/shipping-and-returns

The pH Calibration Set (3 pouches) comes with:

• 2x ORP 225mV Calibration Solution pouches

• 1x ORP storage solution pouch

• ORP 225mV SDS

• ORP Probe Storage Solution SDS