SIST EN 14914:2006
(Main)LPG equipment and accessories - Transportable refillable welded steel cylinders for Liquefied Petroleum Gas (LPG) - Alternative design and construction; periodic inspection
LPG equipment and accessories - Transportable refillable welded steel cylinders for Liquefied Petroleum Gas (LPG) - Alternative design and construction; periodic inspection
This European Standard specifies inspection intervals, procedures for periodic inspection and testing, for transportable refillable welded steel LPG cylinders of alternative design and construction of water capacity from 0,5 l up to and including 150 l (see EN 14140).
This European Standard does not apply to cylinders permanently installed in vehicles, or to plant and filling equipment.
Flüssiggas- Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare, geschweißte Flaschen aus Stahl für Flüssiggas (LPG) - Alternative Gestaltung und Konstruktion; wiederkehrende Prüfung
Diese Europäische Norm beschreibt Zeiträume und Verfahren für die wiederkehrende Prüfung und Prüfung
für ortsveränderliche, wiederbefüllbare, geschweißte Flüssiggasflaschen aus Stahl mit einem Fassungsraum
von 0,5 l bis einschließlich 150 l in Übereinstimmung mit EN 14140.
Diese Norm gilt nicht für Flaschen, die in Fahrzeugen fest eingebaut sind, oder für Anlagen und Füllein-richtungen
Equipements pour gaz de pétrole liquéfié et leurs accessoires - Bouteilles en acier soudées, transportables et rechargeables pour gaz de pétrole liquéfiés (GPL) - Autres solutions en matiére de conception et de fabrication; Inspection périodique
La présente Norme européenne spécifie la fréquence des inspections, les modes opératoires a mettre en
oeuvre pour les inspections périodiques et les essais des bouteilles transportables et rechargeables en acier
soudé, pour gaz de pétrole liquéfié (GPL) avec autres solutions en matiere de conception et de fabrication,
d’une capacité en eau de 0,5 l a 150 l inclus (voir l’EN 14140).
La présente Norme européenne ne s’applique ni aux bouteilles installées a demeure dans des véhicules, ni
aux équipements d’installations et de remplissage.
Oprema in pribor za utekočinjeni naftni plin (UNP) – Premične, ponovno polnljive jeklene varjene jeklenke za UNP – Izbira konstruiranja in izdelave – Periodični pregled
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LPG equipment and accessories - Transportable refillable welded steel cylinders for Liquefied Petroleum Gas (LPG) - Alternative design and construction; periodic inspectionSUHJOHGEquipements pour gaz de pétrole liquéfié et leurs accessoires - Bouteilles en acier soudées, transportables et rechargeables pour gaz de pétrole liquéfiés (GPL) - Autres solutions en matiére de conception et de fabrication; Inspection périodiqueFlüssiggas- Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare, geschweißte Flaschen aus Stahl für Flüssiggas (LPG) - Alternative Gestaltung und Konstruktion; wiederkehrende PrüfungTa slovenski standard je istoveten z:EN 14914:2005SIST EN 14914:2006en23.020.30ICS:SLOVENSKI
STANDARDSIST EN 14914:200601-marec-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14914December 2005ICS 23.020.30 English VersionLPG equipment and accessories - Transportable refillablewelded steel cylinders for Liquefied Petroleum Gas (LPG) -Alternative design and construction; periodic inspectionEquipements pour gaz de pétrole liquéfié et leursaccessoires - Bouteilles en acier soudées, transportables etrechargeables pour gaz de pétrole liquéfiés (GPL) - Autressolutions en matiére de conception et de fabrication;Inspection périodiqueFlüssiggas- Geräte und Ausrüstungsteile - Ortsbewegliche,wiederbefüllbare, geschweißte Flaschen aus Stahl fürFlüssiggas (LPG) - Alternative Gestaltung undKonstruktion; wiederkehrende PrüfungThis European Standard was approved by CEN on 9 December 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14914:2005: E
EN 14914:2005 (E) 2 Contents page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Written scheme of inspection.6 5 Procedures for periodic inspection.6 5.1 General.6 5.2 External visual inspection.7 5.2.1 Preparation for external visual inspection.7 5.2.2 Inspection procedure.7 5.2.3 Visible defects for carbon steel cylinders.7 5.2.4 Visible defects for stainless steel cylinders.9 5.3 Additional inspection / test procedures.11 5.3.1 Preparation of cylinders.11 5.3.2 Hydraulic proof pressure test.11 5.3.3 Internal visual inspection.12 5.3.4 Pneumatic proof test and leak test.13 6 Inspection of cylinder threads.14 6.1 General.14 6.2 Internal threads.14 6.3 External threads.14 6.4 Damaged threads.14 7 Final operations.14 7.1 Drying.14 7.2 Valving.14 7.3 Tare weight.14 7.4 Marking.14 7.5 Purging.15 8 Records.15 Annex A (normative)
Requirements for 15-year periodic inspection interval.16 A.1 General.16 A.2 Concept of control.16 A.3 Conditions.16 Bibliography.18
EN 14914:2005 (E) 3 Foreword This European Standard (EN 14914:2005) has been prepared by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and accessories”, the secretariat of which is held by NSAI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. This European Standard has been submitted for reference into the RID and/or the technical annexes of the ADR. Therefore in this context the standards listed in the normative references and covering basic requirements of the RID/ADR not addressed within the present European Standard are normative only when the standards themselves are referred to in the RID and/or the technical annexes of the ADR. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 14914:2005 (E) 4 Introduction The primary objective of the periodic inspection of transportable refillable welded steel liquefied petroleum gas (LPG) cylinders with alternative design and construction is that, at the completion of the tests, the cylinders can be re-introduced into service for a further period of time. Experience and confidence have been gained over more than 40 years for stainless steel cylinders used for pressurized beverages and 5 years for LPG.
The population of stainless steel cylinders used for pressurized beverages is over 25 million, and the population of LPG stainless steel cylinders is over 4 million.
This experience of stainless steel cylinders has shown that there was no problem of ageing, and that the burst pressure remains within the specification. Periodic inspection is normally carried out at a test station operated under the responsibility of a competent gas organization, or of a third party. This European Standard calls for the use of substances and procedures that can 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 this European Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. Where judgements are called for, it has been assumed that they are made by competent persons who have been trained specifically for the tasks.
EN 14914:2005 (E) 5
1 Scope This European Standard specifies inspection intervals, procedures for periodic inspection and testing, for transportable refillable welded steel LPG cylinders of alternative design and construction of water capacity from 0,5 l up to and including 150 l (see EN 14140). This European Standard does not apply to cylinders permanently installed in vehicles, or to plant and filling equipment. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 837-1:1996, Pressure gauges — Part 1: Bourdon tube pressure gauges — Dimensions, metrology, requirements and testing EN 837-3:1996, Pressure gauges — Part 3: Diaphragm and capsule pressure gauges — Dimensions, metrology, requirements and testing EN 10028-7, Flat products made of steels for pressure purposes — Part 7: Stainless steels EN 12816, Transportable refillable steel and aluminium LPG cylinders — Disposal EN 13152, Specification and testing of LPG cylinder valves — Self closing EN 13153, Specification and testing of LPG cylinder valves — Manually operated EN 14140:2003, Transportable refillable welded steel cylinders for Liquefied Petroleum Gas (LPG) — Alternative design and construction prEN 14894, LPG equipment and accessories — Cylinder and drum marking EN 14912, LPG equipment and accessories — Inspection and maintenance of LPG cylinder valves at time of periodic inspection of cylinders EN 14913, LPG equipment and accessories — Transportable refillable welded steel cylinders for Liquefied Petroleum Gas (LPG) LPG equipment and accessories — Alternative design and construction; procedure for checking before, during and after filling ISO 9162, Petroleum products — Fuels (class F) — Liquefied petroleum gases — Specifications 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply: 3.1 competent body person or corporate body defined by the national authority, which by combination of appropriate qualification, training, experience, and resources, is able to make objective judgements on the subject
EN 14914:2005 (E) 6 3.2 competent person person who by a combination of training, experience and supervision is able to make objective judgements on the subject 3.3 periodic inspection activities carried out at defined intervals, such as examining, measuring, testing or gauging the characteristics of a cylinder and comparing these with specified requirements as defined in EN 14140, and marking to attest conformity 3.4 LPG (liquefied petroleum gas) mixture of predominantly butane or propane with traces of other hydrocarbon gases classified in accordance with UN number 1965, hydrocarbon gases mixture, liquefied, NOS or UN number 1075, petroleum gases, liquefied NOTE in some countries, UN number 1011, 1978 may also be designated LPG. 3.5 tare weight sum of the mass of the empty cylinder, the mass of the valve including a dip tube where fitted, and the mass of all other parts that are permanently attached to the cylinder when it is being filled, e.g. fixed valve guard 4 Written scheme of inspection The interval between periodic inspections shall be dependent on the content of a written scheme. The interval between periodic inspections shall be 15 years provided the conditions of Annex A are fully met and with the approval of the competent authority.
An interval of 10 years shall apply if any of the conditions specified in Annex A are not met. The inspection procedures to be applied shall be selected from the alternatives given in Clause 5. 5 Procedures for periodic inspection 5.1 General Procedures for periodic inspection shall consist of an external visual inspection as described in 5.2 and, additionally, at least one of the procedures described in 5.3. Periodic inspections/tests shall be carried out under the responsibility of a body approved by a competent authority. Cylinders rejected shall be segregated to be reconditioned, re-tested or rendered unserviceable. The decision to render a cylinder unserviceable may be taken at any stage during the periodic inspection procedure.
With the agreement of the owner, a cylinder shall be rendered unserviceable in accordance with EN 12816, so that it cannot be re-issued into service as a pressure vessel. NOTE In some countries, render unserviceable means scrapping.
EN 14914:2005 (E) 7 5.2 External visual inspection 5.2.1 Preparation for external visual inspection a) If required, 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 competent body shall decide whether a thickness test is required e.g. ultrasonic thickness check. NOTE Cleaning methods may be wire brushing, shot blasting (see EN ISO 8504 and EN ISO 8501-1), water jet cleaning, chemical cleaning or other suitable methods. 5.2.2 Inspection procedure The entire surface of the cylinder shall be inspected for: a) dents, cuts, gouges, bulges, cracks, laminations or punctures, applying the criteria for rejection in Table 1 for carbon steel cylinders and Table 4 for stainless steel cylinders; b) corrosion, giving special attention to areas where water can be trapped, at the base of the cylinder, the junction between the cylindrical shell and the foot-ring, the body and the valve guard or shroud, and in particular hidden corrosion (e.g. data plate) applying the criteria for rejection given in Table 2 for carbon steel cylinders and Table 5 for stainless steel cylinders; c) other defects (e.g. depressed bung or fire damage) applying the criteria for rejection given in Table 3 for carbon steel cylinders and Table 6 for stainless steel cylinders; d) the integrity of all permanent attachments; e) the integrity of all mandatory permanent markings. 5.2.3 Visible defects for carbon steel cylinders Rejection criteria for cylinders are described in Table 1, Table 2 and Table 3. For some criteria defined in Table 1 and all criteria defined in Table 3, the rejection limit is given in these tables. For rejection criteria described in Table 1 that have no rejection limit, and for rejection criteria described in Table 2, this limit shall be defined in accordance with the following method: for each defect, 4 cylinders with the same defect shall be tested.
The size of this defect is recorded.
If the defects of the cylinders are different sizes, the size of the smaller defect shall be recorded; two cylinders shall be submitted to the burst test as described in EN 14140 and two cylinders shall be submitted to the fatigue test as described in EN 14140; if the cylinders pass the tests, the defect is acceptable.
The rejection limit can then be defined by the size of that defect; when all rejection criteria have been established for a design of cylinder as defined in EN 14140, Table 1 and Table 2 sha
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.