The procedure is also called energy isolation as well as lockout tag out and is a brewery safety essential. Failure to follow its requirements has been a root cause of many serious brewery injuries.
Entering a tank is serious business. All proper steps must be followed: verify safe atmosphere, mitigation of hazards, rescue plan, and documentation.
How to select and train on the proper personal protective equipment. Written assessment is required.
All breweries have chemicals that can cause serious harm if not handled properly. You must have an inventory, safety data sheets, and proper labeling.
Machine guarding, insulation, electrical installations, pressurized equipment, forklifts, etc. have safety requirements. You must inspect them and keep records.