Glycol

When it comes to monitoring glycol concentrations, Hanna Instruments offers some of the most advanced and user-friendly glycol testers on the market. Our instruments are designed to deliver fast, accurate, and reliable results whether you are conducting glycol tests in the lab or out in the field. From automotive cooling systems to industrial HVAC setups, our glycol testers ensure optimal system performance and protection by providing precise data on glycol levels, freezing points, and overall solution concentration.

What are glycol testers and why are they important?

Glycol testers are specialised instruments used to measure the concentration of glycol in various fluid systems. Glycol, commonly in the form of ethylene glycol or propylene glycol, is a critical component in antifreeze and coolant solutions used across a wide range of industries. Regular glycol tests are essential for ensuring that these fluids maintain their protective properties under extreme temperatures. In automotive systems, for example, an incorrect glycol mix can lead to engine overheating or freezing, while in HVAC systems, improper glycol levels can result in inefficient heat transfer or even system failure.

How glycol tests work 

Conducting a glycol test involves analysing the concentration and freezing point of a glycol-based solution. One of the most common methods is refractometry, where a handheld or benchtop refractometer measures how light bends through the fluid. The refractive index changes according to the concentration of glycol, allowing the device to provide a quick and accurate reading. Another method includes chemical analysis, where the glycol reacts with specific indicators that trigger a visible colour change, offering precise measurements of glycol levels and helping determine if the solution is within safe and functional ranges.

Where are glycol tests valuable? 

Glycol testers are particularly valuable in environments exposed to fluctuating or extreme temperatures. By using a glycol tester, users can determine the exact mixture ratio required to achieve the desired freezing and boiling points, thereby avoiding costly damage to critical systems. Whether you are servicing vehicles, managing an industrial heating system, or maintaining chillers, reliable glycol tests are a key part of preventive maintenance.

Benefits of using Hanna Instruments glycol testers

Hanna Instruments glycol testers stand out due to their high-quality construction, intuitive operation, and dependable results. Designed for use in harsh and demanding environments, our testers are built with robust materials and advanced sensing technologies to ensure long-lasting performance. They are portable, easy to calibrate, and provide fast readings, making them ideal for technicians and engineers who need quick insights on the go.

Our range includes models suitable for both ethylene and propylene glycol testing, and they are perfectly suited for applications in automotive, industrial, and environmental fields. Whether you're checking coolant concentration in a fleet of vehicles or monitoring antifreeze in an industrial chiller, Hanna Instruments provides the tools to keep your systems running efficiently and safely.