What all needs to be checked during the revision?

A gas appliance inspection should include an inspection of the entire gas appliance, i.e. the gas pipeline and gas appliances. Specifically, these should include:

• gas pressure check
• gas pipeline leak check
• checking connections (demountable, fixed)
• checking the gas pipeline attachment
• inspection of coatings, markings
• checking the connection of gas appliances
• gas meter check
• checking the exhaust of flue gases from appliances (chimney)
• immediate elimination of detected gas leaks
• overall evaluation and preparation of a review report at the customer's premises