What should be tested before welding or cutting in coal storage?

Before welding or cutting in coal storage areas, it is essential to test for methane because it is a flammable and potentially explosive gas that can accumulate in places where coal is stored. Methane, being an odorless gas, can pose significant risks if not detected prior to any hot work activities, such as welding or cutting. If present in sufficient concentrations, methane can ignite, leading to fires or explosions. Ensuring that methane levels are monitored and controlled helps safeguard workers and the surrounding environment.

The presence of oxygen levels, carbon monoxide, and hydrogen sulfide are also safety concerns in confined spaces, particularly in coal environments, but the immediate risk associated with welding or cutting operations is primarily linked to methane, making it critical to test for this gas specifically before proceeding with such activities.