What must a Certificate of Fitness holder regulate for each torch?

The responsibility of a Certificate of Fitness holder includes regulating the pressure and flow of oxygen and gas for each torch. This is crucial because the proper adjustment of pressure ensures that the flame produced is both stable and effective for welding or cutting tasks. If the pressure is too high, it can lead to an uncontrolled flame, while too low pressure may result in an ineffective flame that cannot complete the intended task. Monitoring both the oxygen and gas flow helps maintain the proper combustion ratio required for safe and effective operation.

While monitoring the temperature of the flame, the type of gas used, and the size of the torch are important considerations, they are secondary to the need for proper regulation of the gases' pressure and flow, which directly impacts safety and functionality.