BS EN 1442:2017 pdf download.LPG equipment and accessories Transportable refillable welded steel cylinders for LPG Design and construction.
BS EN 1442 calls for the use of substances and procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage.
It has been assumed in the drafting of BS EN 1442 that the execution of its provisions is entrusted to appropriately qualified and experienced people.
All pressures are gauge pressures unless otherwise stated.
NOTE BS EN 1442 requires measurement of material properties, dimensions and pressures. All such measurements are subject to a degree of uncertainty due to tolerances in measuring equipment, etc. It may be beneficial to refer to the leaflet “measurement uncertainty leaflet (SP INFO 2000 27 uncertainty pdf)” [7].
BS EN 1442 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 1 up to and including 150 1.
BS EN 1442 applies only to cylinders having a circular cross-section.
Cylinders designed and constructed to the requirements of BS EN 1442 may be overmoulded; additional requirements for these cylinders are set out in Annex B.
2 Normative references
The following documents, in whole or in part, are normatively referenced in BS EN 1442 and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 10120k Steel sheet and strip for welded gas cylinders
EN 10204, Metallic products – Types of inspection documents
stress reduction factor.
original gauge length of the test piece, in accordance with EN ISO 4136, and EN ISO 6892-1 in millimetres.
ratio of diameter of bend test former to the thickness of the test piece, (see Table 6).
calculation pressure (1 bar = 1O Pa = 1O N/rn2), used to calculate the minimum required thickness of the cylindrical shell and ends, in bar.
maximum pressure attained during the burst test, in bar.
actual test pressure applied to the cylinder by the manufacturer, in bar. minimum permissible test pressure, in bar.
inside knuckle radius of the torispherical end, in millimetres.
inside spherical radius of the torispherical end, in millimetres.
minimum value of tensile strength guaranteed by the cylinder manufacturer for the finished cylinder, in Newton’s per square millimetre.BS-EN-1442-2017