Learn More

The sniffer test is a reliable and cost-effective method for leak detection using tracer gases like helium or hydrogen. This guide explores how the method works, the equipment involved, and when to use it—along with best practices for maximizing accuracy in sensitive applications such as medical devices, refrigeration, and automotive systems.

Choosing the right tracer gas is critical for accurate and efficient leak detection. In this guide, we compare the top options—helium, hydrogen, and process gases like refrigerants and SF₆—highlighting their advantages, limitations, and ideal use cases. Whether you’re testing HVAC systems, electronics, or manufacturing components, this article will help you select the best gas for your leak detection needs.

In this guide, we explain what trace gas is, its various uses, and how gases like methane, helium, and carbon monoxide are important in both environmental and industrial contexts.

What is a Pressure Decay Leak Test? A pressure decay leak test is a widely used method for identifying leaks in parts by observing changes in pressure. During the test, a part is pressurized, and the pressure is monitored over a specific time period. If the pressure drops below a predetermined threshold during the test,

What is Helium Bombing? Helium bombing is the process of exposing a part to helium at an elevated pressure for an extended period. This forces helium into the part if a leak exists, preparing the part for a subsequent helium leak test. Once the part is bombed, the helium in the part can now be

How frequently a leak should be calibrated depends on a number of factors including the depletion rate, application, and implication should a failure occur.