Hanna Instruments

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Certificates of Analysis

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Ethylene glycol is commonly used in glycol cooling systems for industrial applications. It is essential to maintain the right glycol percentage in glycol chillers as if it is too low this could lead to the system freezing and rupturing, but if it is too high this will reduce the efficiency of the system. If ethylene glycol is present in motor oil or transmission fluid, this could indicate a leakage in the cooling systems.


Hanna provide a range of Chemical Test Kits and Refractometers that are ideal for determining the glycol percent volume.