National foreword

This British Standard is the UK implementation of EN 1442:2017. It supersedes BS EN 1442:2006+A1:2008, which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee PVE/19, LPG containers and their associated fittings.

A list of organizations represented on this committee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2017.

This European Standard was approved by CEN on 20 February 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

European foreword

This document (EN 1442:2017) has been prepared by Technical Committee CEN/TC 286 “LPG 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of an identical text or by endorsement, at the latest by November 2017, and conflicting national standards shall be withdrawn at the latest by November 2017.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 1442:2006+A1:2008.

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association.

All stages of the manufacture, distribution and disposal of these cylinders may have an effect on the environment. CEN/TS 16765 [1] sets out environmental considerations for this European Standard.

This European Standard has been submitted for reference into the RID [4] and/or in the technical annexes of the ADR [5]. Therefore the standards listed in the normative references and covering basic requirements of the RID/ADR not addressed within the present standard are normative only when the standards themselves are referred to in the RID [4] and/or in the technical annexes of the ADR [5].

NOTE These regulations take precedence over any clause of this European Standard. It is emphasized that RID/ADR are being revised regularly at intervals of two years which may lead to temporary non-compliances with the clauses of this European Standard.

This European Standard has been extensively re-formatted to align with other more recent LPG cylinder standards.

The main technical changes include:

the inclusion of over-moulded cylinders; and
re-establishing 50 bar as the minimum burst pressure.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Introduction

This European Standard 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 this European Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people.

All pressures are gauge pressures unless otherwise stated.

NOTE This European Standard 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].

1 Scope

This European Standard 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.

This European Standard applies only to cylinders having a circular cross-section.

Cylinders designed and constructed to the requirements of this European Standard may be over-moulded; additional requirements for these cylinders are set out in Annex B.

2 Normative references

3 Terms, definitions and symbols

3.1 Terms and definitions

3.2 Symbols

4 Materials

4.1

4.2

4.3

4.4

4.5

4.6

5 Design

5.1 General requirements

5.2 Calculation of cylindrical shell thickness

5.3 Design of torispherical and semi-ellipsoidal ends concave to pressure

5.4 Design of ends of shapes other than torispherical and semi-ellipsoidal

5.5 Minimum wall thickness

5.6 Design of openings

5.7 Valve protection

5.8 Non-pressure containing attachments

5.9 Over-moulded cylinders

6 Construction and workmanship

6.1 General

6.2 Welding qualification

6.3 Plates and formed parts

6.4 Welded joints

6.5 Tolerances

6.6 Closure of openings

6.7 Heat treatment

7 Tests and examinations

7.1 General

7.2 Types of test and evaluation of test results

7.3 Test specimens and related tests and examinations

7.4 Tensile test

7.5 Bend test

7.6 Burst test under hydraulic pressure

7.7 Pressure test

7.8 Radiographic examination

7.9 Macro examination

7.10 Visual examination of the surface of the weld

7.11 Fatigue test

8 Technical requirements for type approval

8.1 General

8.2 Extent of testing

8.3 Cylinder types

8.4 Type approval certificate

9 Initial inspection and tests

9.1 Tests and examinations applicable to all cylinders

9.2 Radiographic examination

9.3 Macro examination

9.4 Examination of valve boss weld

9.5 Examination of non-pressure containing attachment welds

9.6 Unacceptable imperfections found by the radiographic or macro examinations

9.7 Production batch testing (mechanical / burst tests)

9.8 Failure to meet mechanical and burst test requirements

10 Marking

10.1

10.2

11 Documentation

12 Certificate

Bibliography

BS EN 1442:2017

LPG equipment and accessories. Transportable refillable welded steel cylinders for LPG. Design and construction

Current, Under Review

Published:

30 Jun 2017