Hanna Instruments

Scientific Equipment

Safety Data Sheets

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Certificates of Analysis

Download a copy of the certificate of analysis for your solution

Oxidation reduction potential (ORP) is a measure of the ability of a solution to oxidise or reduce a chemical species. These reactions are known as redox reaction. ORP is an important measurement in determining the effectiveness of substances such as chlorine and ozone at disinfecting. ORP is measured in a wide variety of industries, including swimming pools, plating, boilers and cooling towers.


Hanna provide a wide range of instruments for ORP measurements suitable for almost every application.