BS EN 14140 specifies the minimum requirements for the design, construction, and testing during manufacture of transportable refillable welded steel Liquefied Petroleum Gas (LPG) cylinders, of water capacity from 0,5 l up to and including 150 l, exposed to temperatures of -20 °C to +65 °C. BS EN 14140 allows alternative design and construction methods to those required in EN 1442, including coated cylinders, over-moulded cylinders and cylinders for hot air balloons. BS EN 14140 applies only to pressure receptacles with a circular cross-section.
Note 1: BS EN 14140 does not include the equipping of the cylinders with valves and other service equipment.
Note 2: BS EN 14140 requires measurement of material properties, dimensions, and pressures.
BS EN 14140 on alternate design and construction for LPG is useful for:
BS EN 14140 calls for the use of substances and procedures that may be injurious to health and/or the environment if adequate precautions are not taken. BS EN 14140 refers to technical suitability: BS EN 14140 does not absolve the user from their legal obligations at any stage. The drafting of BS EN 14140 of its provisions is entrusted to appropriately qualified and experienced people. BS EN 14140 permits the use of new and higher strength steels and has the potential for cylinders to have a wall thickness thinner than the minimum wall thickness related to diameter when compared with cylinders in accordance with EN 1442. These changes in technology are justified by requiring a series of performance tests, including impact testing, to demonstrate the adequacy of the calculated pressure thickness for service and transport considerations. Reference should also be made to EN 1439 and EN 1440, which requires the cylinder manufacturer to perform additional tests to determine the rejection limits for in-service damage and to include these limits in the documentation for the cylinder. Protection of the environment is a key political issue in Europe and elsewhere around the world. Protection of the environment in BS EN 14140 is understood in a very broad sense. The phrase is used about the total life-cycle aspects of a product on the environment, including the expenditure of energy, and during all phases of its existence, from the mining of raw materials to fabrication, packaging, distribution, use, scrapping, recycling of materials, etc.
Annex D comprises an environmental checklist which highlights the clauses of BS EN 14140 that address environmental aspects. It is recommended that manufacturers develop an environmental management policy. For guidance see EN ISO 14000 series, [6], [7] and [8]]. Provisions need to be restricted to general guidance.
BS EN 14140:2014 supersedes EN 14140:2003+A1:2006, which is withdrawn. BS EN 14140:2014 includes some technical changes in regard to EN 14140:2003+A1:2006. These include:
EN 14140:2014/AC:2015