EN 14912:2022

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN 14912:2015
Oprema in pribor za utekočinjeni naftni plin (UNP) - Kontrola in vzdrževanje
ventilov za jeklenko za UNP v času periodične kontrole jeklenk
LPG equipment and accessories - Inspection and maintenance of LPG cylinder valves at
time of periodic inspection of cylinders
Flüssiggas-Geräte und Ausrüstungsteile - Inspektion und Wartung von Ventilen für
Flaschen für Flüssiggas (LPG) zum Zeitpunkt der wiederkehrenden Inspektion der
Flaschen
Équipements pour GPL et leurs accessoires - Contrôle et entretien des robinets de
bouteilles de GPL lors du contrôle périodique des bouteilles
Ta slovenski standard je istoveten z: EN 14912:2022
ICS:
23.020.35 Plinske jeklenke Gas cylinders
23.060.40 Tlačni regulatorji Pressure regulators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14912
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 23.060.40 Supersedes EN 14912:2015
English Version
LPG equipment and accessories - Inspection and
maintenance of LPG cylinder valves at time of periodic
inspection of cylinders
Équipements pour GPL et leurs accessoires - Contrôle Flüssiggas-Geräte und Ausrüstungsteile - Inspektion
et entretien des robinets de bouteilles de GPL lors du und Wartung von Ventilen für Flaschen für Flüssiggas
contrôle périodique des bouteilles (LPG) zum Zeitpunkt der wiederkehrenden Inspektion
der Flaschen
This European Standard was approved by CEN on 8 May 2022.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14912:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
4.1 General. 7
4.2 Cleaning . 8
4.3 Personnel . 8
4.4 Safety concerns . 8
5 Inspections . 8
5.1 General. 8
5.2 External inspection . 9
5.3 Additional inspection criteria . 9
5.4 Pressure relief valves . 10
5.4.1 General requirement . 10
5.4.2 Individual test . 10
5.4.3 Batch sampling test . 10
5.5 Acceptance criteria. 10
6 Maintenance . 11
6.1 Minor repair. 11
6.2 Refurbishment . 11
6.2.1 General. 11
6.2.2 Valve inspection during refurbishment . 11
6.2.3 Valve repair during refurbishment . 11
7 Testing . 12
7.1 General. 12
7.2 Refurbished valves . 12
7.3 All other valves . 12
8 Marking . 12
Bibliography . 13

European foreword
This document (EN 14912:2022) 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 December 2022, and conflicting national standards shall
be withdrawn at the latest by December 2022.
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 14912:2015.
This document includes the following significant technical changes with respect to EN 14912:2015:
— alignment with the requirement of paragraph 12 of Packing Instruction P200 of ADR;
— introduction of inspection and refurbishment requirements for pressure relief valves;
— in Clause 3: the update of definitions:
— periodic inspection;
— minor repair;
— in 3.11, in replacement of “working pressure definition”, the addition of “pressure relief valve”
(as given in EN 13953:2020);
— in 5.2, the external inspection list has been updated;
— in 6.1, the paragraph has been updated;
— in Clause 7:
— addition of a paragraph “7.1: General”;
— deletion of old 7.1.3 paragraph;
— update of old 7.2 (new 7.3) paragraph.
Users are advised to develop an environmental management policy. For guidance, see the
EN ISO 14000 series ([1], [2] and [3]). Users of this document are expected to consult CEN/TS 16765
while implementing its requirements.
This document has been submitted for reference in
— the RID and/or
— the technical annexes of the ADR
NOTE These regulations take precedence over any clause of this document. 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 document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
Introduction
This document has been prepared to reflect the current methods for periodically inspecting LPG cylinder
valves, and is based upon the operating experience of millions of cylinder years of service over a period
of more than 50 years.
The primary objective of the periodic inspection of transportable refillable LPG cylinder valves is that, at
the completion of the tests, the cylinder valve can be re-introduced into service for a further period of
time.
The valve inspection is an integral part of the periodic inspection of an LPG cylinder.
Periodic inspections/tests are intended to be carried out by a competent person under the authorization
of an inspection body based on a written scheme of examination.
Protection of the environment is a key political issue in Europe and elsewhere. For CEN/TC 286 this is
covered in CEN/TS 16765 and this Technical Specification should be read in conjunction with this
document. This Technical Specification provides guidance on the environmental aspects to be considered
regarding equipment and accessories produced for the LPG industry and the following is addressed:
— design;
— manufacture;
— packaging;
— use and operation; and
— disposal.
This document calls for the use of substances and procedures that can be injurious to health if adequate
precautions are not taken. It refers 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 document 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.
1 Scope
This document specifies the requirements for inspection and maintenance of LPG cylinder valves, either
manually operated or self-closing, for reuse. It applies when the valve is either inspected or refurbished
at the time of periodic inspection of the cylinder.
This document may also be applied at any other time, for example, when maintenance of the valve is
necessary.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 14245:2021, Gas cylinders - Specifications and testing of LPG cylinder valves - Self-closing (ISO
14245:2021)
EN ISO 15995:2021, Gas cylinders - Specifications and testing of LPG cylinder valves - Manually operated
(ISO 15995:2021)
ISO 2859-1:1999, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
liquefied petroleum gas
LPG
low pressure liquefied gas composed of one or more light hydrocarbons which are assigned to UN 1011,
UN 1075, UN 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene, butane,
butane isomers, butene with traces of other hydrocarbon gases
3.2
periodic inspection
activities carried out at specified intervals, such as examining, measuring, testing or gauging the
characteristics of a pressure vessel and comparing these with specified requirements
3.3
dismantling
separation i
...