What is the Aqua-Glo test specifically used to assess in aviation fuel?

The Aqua-Glo test is specifically designed to assess the presence of free water in aviation fuel. This test serves a critical role in ensuring that the fuel meets safety and performance standards for aircraft operation. Free water can pose significant hazards, such as causing corrosion in fuel tanks and engines, or leading to fuel contamination, which can affect engine performance and reliability.

By detecting free water, the Aqua-Glo test helps fuel handlers and quality control personnel ensure that the fuel is suitable for use and minimize the risk of operational issues. This test leverages the fact that water can negatively impact the combustion process and overall fuel performance in aviation applications, thus making it a vital part of fuel testing protocols.