BS EN 1440:2016 pdf download – LPG equipment and accessories — Transportable refillable traditional welded and brazed steel Liquefied Petroleum Gas (LPG) cylinders — Periodic inspection 5 Inspections and tests 5.1 General Relevant cylinder data shall be identified before any inspections or tests are carried out. Cylinders which cannot be safely emptied of gas shall be set aside for special handling. Cylinders with inoperative or blocked valves shall be set aside for safe valve removal. Before preparing for inspection, manufacturer’s guidelines shall be taken into account to avoid any damage to the cylinders. Any chemical solutions and/or cleaning methods used shall be selected to ensure that they do not adversely affect cylinder material. 5.2 External visual inspection 5.2.1 Preparation for external visual inspection a) If necessary, the cylinder shall be cleaned and have all loose coatings or labels, corrosion products, tar, oil or other foreign matter removed from its external surface, b) Care shall be taken to avoid damaging the cylinder, c) When cylinders are treated by a process that might remove cylinder material, the inspection body shall decide whether a thickness test is required, e.g. ultrasonic thickness check. NOTE Cleaning methods include wire brushing, shot blasting (in accordance with EN ISO 8504 [6] series and EN ISO 8501-1 [5]), water jet cleaning, chemical cleaning or other suitable methods, that do not adversely affect any part of the cylinders. 5.2.2 Inspection procedure LPG cylinders shall be inspected for: a) dents, cuts, gouges, bulges, cracks, laminations or punctures while applying the criteria for rejection in Annex A; b) corrosion, applying the criteria for rejection given in Annex A; while giving special attention to areas where water can be trapped EXAMPLE at the base of the cylinder; the junction between the cylindrical shell and the foot-ring; the junction between the cylindrical shell and the valve guard or shroud; and hidden corrosion (e.g. under handles). c) other defects (e.g. depressed bung or fire damage) while applying the criteria for rejection given in Annex A; d) integrity of all permanent attachments; and e) integrity of all mandatory permanent markings. 5.2.3 Rejection criteria The specific requirements for external visual inspection of LPG cylinders are described in Annex A including defect descriptions and rejection limits. 5.3 Proof pressure test 5.3.1 General The test shall consist of one of the proof pressure tests described in 5.3.2 and 5.3.3. Proof pressure testing, according to 5.3.3, requires the agreement...
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