Appendix F (normative) Consumer instructionsThe following information, together with the appliance manufacturer’s instructions, shall be provided to the customer.Consumer instructions for gas installations shall include the following:NOTE 1 These are applicable to both caravans and boats except where indicated otherwise.(a) Close appliance valves before opening cylinder valve.(b) Where readily accessible check connections at the appliances, regulators, hoses and cylindersperiodically for leaks with soapy water, or its equivalent.NOTE 2 This should be done every time a cylinder is changed over or at least annually.NOTE 3 Caution: the ammonia present in some soaps and detergents can react with brass fittings and cause such fittings to crack after a short period of time. Therefore, caution should be exercised when using soap solutions on brass fittings and all connections should be rinsed thoroughly with fresh water as soon as possible after the application of the soap solution.(c) Never use a match or flame when checking leaks.(d) Close cylinder valve when appliances are not in use or while refuelling is in progress.(e) No appliance with a continuously burning flame shall be left operating in any fuel driven boatwhen left unattended for a period of, or in excess of, 12 h.(f) Never use cooking appliances for comfort heating.(g) When the boat is fitted with a gas detector, the gas detector shall be checked for the presence of flammable vapours and the boat shall be cleared of flammable vapour before lighting any LP Gas appliance or starting the motor.(h) In the event of fire, immediately close cylinder valve if safe to do so.(i) Ensure valve is closed and fit gastight sealing plug to all spare cylinders not connected, whether full or empty.(j) All additions or alterations to the LP Gas system shall be performed by an authorized person.NOTE 4 Appliances should not be altered without the authorization of the manufacturer.(k) All permanent ventilators, flues and vents shall be checked regularly to ensure they are clear, open and unrestricted.(l) In the event of an accidental gas leak, close cylinder valve and ventilate the area using a safe method until the air is clear.(m) Gas or carbon monoxide detection systems shall be tested and maintained to the manufacturer’s instructions.For flexible hoses the consumer instructions shall include their —(i) location;