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Below we have detailed a list of frequently asked questions and answers about LP gas from our files.
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LP gas is "liquefied petroleum" gas commonly known as L.P.G. or simply "bottled gas". These are names used to describe PROPANE and BUTANE. LP gas is stored in cylinders under moderate pressure as a liquid. When gas is required, the cylinder valve is opened and some of the liquid boils off as a vapor of gas.
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As a safety feature, a strong, distinctive odour is deliberately added to LP gas to assist in early detection of even minor leaks.
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Since LP gas is heavier than air, any leaked gas will always flow downwards, collect in low spaces and be slow to dissipate without ample ventilation and air movement.
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All LP gas is absolutely non-toxic, non-corrosive, clean burning and non-polluting, but if inhaled in sufficient volumes it can cause suffocation.
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1. Ensure that fixed LP gas installations are carried out and serviced by a licensed or authorized gas fitter. This includes work in premises, on caravans and boats.
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2. Keep LP gas appliances and fittings in first class condition. Check them regularly for any deterioration in performance, signs of corrosion or for minor leaks. If any leak of gas is detected, refer to Emergency Procedures.
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3. Use only equipment and parts specifically manufactured and approved for LP gas. Appliances burning LP gas are tested and approved by the Australian gas industry. Look for the endorsement badge on every product.
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4. Hold a burning match or gas gun at the burner, then turn "ON". If gas fails to ignite promptly, turn "OFF", ventilate for at least 3 minutes to disperse the gas and repeat the process. - adequate ventilation is essential when using LP gas to allow ample fresh air for combustion and removal of burnt gases. Never seal doors, windows or tents for extra warmth while a gas appliance is being operated. - check for leaks by brushing on soapy water. NEVER USE A MATCH!
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5. Use the correct type of hose. Do not make up temporary connections. Keep hose gently curved to eliminate kinks and damage.
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6. Keep cylinders secure during transport. Use a cylinder sealing plug whenever the appliance is not connected.
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7. Shut off cylinder valve before disconnecting cylinder from the appliance. Conversely, when replacing an empty with full cylinder ensure the appliance isolation cocks are turned off.
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8. Cylinders are not to be totally filled with LP gas. To allow a safe vapor space for liquid expansion with temperature change, the correct maximum fills is approximately 80%. The filling of any cylinder from Service Station bowsers, other than for automotive use, is an offense. This practice could result in the supply of automotive grade LP gas.
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Every cylinder must be inspected at an authorised LP Gas Test Station at least once every ten years. (SPEED-E-GAS is an authorised test station). The last inspection date is stamped on the cylinder collar, neck or foot ring.
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A safety valve is fitted to the vapor space to allow automatic relief of any excess pressure due to overfilling, or in the event of fire. NEVER tamper with the safety valve or other cylinder fittings. Do not use undue force to open or close the main cylinder valve. If in doubt, consult the supplier. If any leakage from the valve of a small cylinder is detected or suspected, move the cylinder to a safe location at least 20 metres from any possible source of ignition. Slowly release the contents. Return the empty cylinder to a Test Station. Where a leaking cylinder is part of a fixed installation, shut off the main valve and immediately notify your gas supplier. Store cylinders well away from possible sources of ignition or excess heat and in a well ventilated space. Do not store near other compressed gases.
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Leak suspected - location uncertain Check the entire system for gas leak using a soapy water solution which will bubble at any point where gas escapes. NEVER us a match or flame to test. If the leak has been indoors, fully ventilate the room before further use of the appliance. Do not interfere with any part of a fixed installation. Leak detected - not on fire If possible stop the leak by shutting cylinder valve. Ventilate thoroughly until the air is clear. If not possible to stop the leak, remove the cylinder carefully to a safe outdoor location. Keep the leak uppermost so that only gas and not liquid escapes. Keep hands and face clear of any stream of escaping liquid.
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If cylinder cannot be removed, disperse gas with fine water spray and provide maximum ventilation. Keep possible ignition sources at least 20 metres away until cylinder is empty. These sources could include: open fires, non-flameproof electrical appliances, camera flash, telephone, radio, vehicle engines, and any other equipment that can generate a spark. Leaking cylinder or appliance - on fire If valve is undamaged, close if safe to do so and let fire go out. Do not use again until inspected. If valve cannot be closed, call fire brigade or police or gas dealer, advising location, that it is a LP gas and the cylinder size. Keep cylinder cool by water hose but DO NOT attempt to extinguish the flame. Unburnt gases in confined space may explode if re-ignited. Keep clear and await assistance. If there is any possibility of cylinder(s) being engulfed by fire, evacuate the adjacent area.
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