prEN 14334
(Main)LPG equipment and accessories - Inspection and testing of LPG road tankers
LPG equipment and accessories - Inspection and testing of LPG road tankers
This document specifies minimum requirements for the inspection and testing of the LPG road tanker, which includes its pressure vessel, accessories and vehicle LPG equipment.
This document does not apply to compartmented road tankers.
NOTE 1 There is no upper size limit for the pressure vessel as this will be determined by the gross vehicle weight limitation.
NOTE 2 For further information on inspection and testing requirements of equipment other than the pressure vessel, accessories and vehicle LPG equipment, see applicable regulations.
Flüssiggas-Geräte und Ausrüstungsteile - Inspektion und Prüfung von Straßentankwagen für Flüssiggas (LPG)
Dieses Dokument legt Mindestanforderungen an die Inspektion und Prüfung von Straßentankwagen für Flüssiggas (LPG), einschließlich des Druckbehälters, der Ausrüstungsteile und der Flüssiggas-Fahrzeugausrüstung fest.
Dieses Dokument gilt nicht für Straßentankwagen, die in mehrere Abschnitte unterteilt sind.
ANMERKUNG 1 Es besteht keine obere Begrenzung für die Größe der Druckbehälter, da diese durch die maximale Bruttomasse des Fahrzeugs begrenzt wird.
ANMERKUNG 2 Für weitere Informationen zu den Inspektions- und Prüfanforderungen von anderer Ausrüstung als Druckbehälter, Ausrüstungsteile und Flüssiggas-Fahrzeugausrüstung siehe die jeweiligen anwendbaren Rechts-vorschriften.
Équipements pour GPL et leurs accessoires - Inspection et essais des véhicules citernes routiers pour GPL
Le présent document spécifie les exigences minimales relatives à l'inspection et aux essais des véhicules citernes routiers pour GPL qui incluent les réservoirs sous pression, leurs accessoires et les équipements pour véhicules GPL.
Le présent document ne s'applique pas aux véhicules-citernes routiers compartimentés.
NOTE 1 Il n'y a pas de limite supérieure de taille pour le réservoir sous pression dans la mesure où elle est déterminée par la limitation de masse brute du véhicule.
NOTE 2 Pour des informations supplémentaires concernant les exigences d'inspection et d'essais des équipements autres que le réservoir sous pression, ses accessoires et les équipements pour véhicules GPL, voir les réglementations en vigueur.
Oprema in pribor za utekočinjeni naftni plin (UNP) - Pregledi in preskušanje cestnih cistern za UNP
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 14334:2022
01-marec-2022
Oprema in pribor za utekočinjeni naftni plin (UNP) - Pregledi in preskušanje
cestnih cistern za utekočinjeni naftni plin (UNP)
LPG equipment and accessories - Inspection and testing of LPG road tankers
Flüssiggas-Geräte und Ausrüstungsteile - Inspektion und Prüfung von
Straßentankwagen für Flüssiggas (LPG)
Équipements pour GPL et leurs accessoires - Inspection et essais des véhicules citernes
routiers pour GPLTa slovenski standard je istoveten z: prEN 14334
ICS:
23.020.20 Posode in vsebniki, montirani Vessels and containers
na vozila mounted on vehicles
43.080.10 Tovornjaki in priklopniki Trucks and trailers
oSIST prEN 14334:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 14334:2022
DRAFT
EUROPEAN STANDARD
prEN 14334
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2022
ICS 43.080.10 Will supersede EN 14334:2014
English Version
LPG equipment and accessories - Inspection and testing of
LPG road tankers
Équipements pour GPL et leurs accessoires - Inspection Flüssiggas-Geräte und Ausrüstungsteile - Inspektion
et essais des véhicules citernes routiers pour GPL und Prüfung von Straßentankwagen für Flüssiggas
(LPG)This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 286.If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.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. prEN 14334:2022 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
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prEN 14334:2022 (E)
Contents Page
European foreword ...................................................................................................................................................... 3
Introduction .................................................................................................................................................................... 4
6.1 General................................................................................................................................................................ 8
6.2 Inspection of the necessary documents .................................................................................................. 8
6.3 Inspection of the interior of the pressure vessel................................................................................. 8
6.4 Inspection of the exterior of the pressure vessel ................................................................................ 9
6.4.1 External visual inspection ........................................................................................................................... 9
6.4.2 Inspection of earthing ................................................................................................................................... 9
6.4.3 Pressure vessel inspection procedures .................................................................................................. 9
6.4.4 Inspection criteria .......................................................................................................................................... 9
6.5 Inspection of the vehicle LPG equipment and accessories ............................................................ 10
6.5.1 Inspection ........................................................................................................................................................ 10
6.5.2 Satisfactory operation ................................................................................................................................. 10
6.5.3 Hose end couplings and transfer couplings ........................................................................................ 10
6.5.4 Emergency Shut-Down system (ESD) .................................................................................................... 10
6.5.5 Sun shields ....................................................................................................................................................... 10
6.5.6 Metering systems .......................................................................................................................................... 11
6.6 Hydraulic pressure testing ........................................................................................................................ 11
6.6.1 General.............................................................................................................................................................. 11
6.6.2 Hydraulic test pressure .............................................................................................................................. 11
6.6.3 Hydraulic pressure test liquid ................................................................................................................. 11
6.6.4 Pressurization ................................................................................................................................................ 11
6.6.5 Test duration .................................................................................................................................................. 11
6.6.6 Measurement .................................................................................................................................................. 11
6.6.7 Evaluation of the test ................................................................................................................................... 12
6.6.8 Alternatives to the periodic hydraulic test .......................................................................................... 12
6.7 Leakproofness test ....................................................................................................................................... 13
6.7.1 General.............................................................................................................................................................. 13
6.7.2 Leakproofness test pressure .................................................................................................................... 13
6.7.3 Extent of test ................................................................................................................................................... 14
6.7.4 Evaluation of the test ................................................................................................................................... 14
6.8 Testing of the vehicle LPG equipment and accessories................................................................... 14
6.8.1 Testing of PRVs .............................................................................................................................................. 14
6.8.2 Testing of the Emergency Shut-Down system (ESD) ........................................................................ 14
6.8.3 Testing of hose assemblies ........................................................................................................................ 14
6.9 Inspection and testing of pressure vessel or structural equipment after repair .................. 14
6.10 Re-inspection .................................................................................................................................................. 15
7.1 Certification of periodic, intermediate inspection and exceptional check .............................. 15
7.2 Marking ............................................................................................................................................................ 15
Annex A (informative) Road tanker inspection/check certificate ........................................................... 16
Bibliography ................................................................................................................................................................. 17
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prEN 14334:2022 (E)
European foreword
This document (prEN 14334:2022) has been prepared by Technical Committee CEN/TC 286 “Liquefied
petroleum gas equipment and accessories”, the secretariat of which is held by NSAI.
This document is currently submitted to the CEN Enquiry.This document will supersede EN 14334:2014.
In comparison with the previous edition, the following technical modifications have been made:
— Removal of the Annex on the Environmental checklist, addition of a reference to CEN/TS 16765;
— Where possible, the terms in Clause 3 were substituted with a reference to CEN/TS 16769;
— The definitions for test and inspection from EN ISO 10286 “Gas cylinders — Terminology” are
adopted and included to Clause 3;— The clause on initial inspection and testing is taken from EN 12252 and the document is re-
structured; with the new Clause 4 “Initial inspection and testing” and Clause 5 “In-service inspection
and testing”;— Table 1 on the frequency of required inspections and tests is updated;
— The proposal from J. Ferreira and C. Moreira (doc. no. 333) is introduced with modifications as 6.5
“Inspection of the vehicle LPG equipment and accessories”;— 6.7.2 “Leakproofness test pressure” is updated;
— 6.8 “Testing of the vehicle LPG equipment and accessories” is thoroughly revised;
— The term “inspectors” was substituted with “inspection body”, where appropriate;
— Requirements on the inspection of necessary documents were simplified;— A recommendation for the use of gas detectors was added;
— The test of earthing connections was clarified;
— Acoustic emission testing was added as possible method.
This document will be submitted for reference in
— the RID and/or
— the technical annexes of the ADR.
NOTE These regulations take precedence over any clause of this standard. It is emphasized that RID/ADR are
being revised regularly at intervals of two years which can lead to temporary non-compliances with the clauses of
this standard.---------------------- Page: 5 ----------------------
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prEN 14334:2022 (E)
Introduction
This document 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.The frequencies of the different types of pressure vessel inspection are given by the relevant international
regulations concerning the transport of dangerous goods.Protection of the environment is a key political issue in Europe and elsewhere, for CEN/TC 286 this is
covered in CEN/TS 16765 [1] 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:
a) design;b) manufacture;
c) packaging;
d) use and operation; and
e) disposal.
It is recommended that companies using this document develop an environmental management policy.
For guidance, see EN ISO 14001 [3].It has been assumed in the drafting of this document that the execution of its provisions is entrusted to
appropriately qualified and experienced people.All pressures are gauge pressures unless otherwise stated.
NOTE This document 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 might be
beneficial to refer to the leaflet “measurement uncertainty leaflet” SP INFO 2000 27 [4].
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prEN 14334:2022 (E)
1 Scope
This document specifies minimum requirements for the inspection and testing of the LPG road tanker,
which includes its pressure vessel, accessories and vehicle LPG equipment.This document does not apply to compartmented road tankers.
NOTE 1 There is no upper size limit for the pressure vessel as this will be determined by the gross vehicle weight
limitation.NOTE 2 For further information on inspection and testing requirements of equipment other than the pressure
vessel, accessories and vehicle LPG equipment, see applicable regulations.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.
CEN/TS 16769, LPG equipment and accessories - TerminologyEN 837-1:1996, Pressure gauges - Part 1: Bourdon tube pressure gauges - Dimensions, metrology,
requirements and testingEN 837-3:1996, Pressure gauges - Part 3: Diaphragm and capsule pressure gauges - Dimensions, metrology,
requirements and testingEN 1762, Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and
natural gas up to 25 bar (2,5 MPa) - SpecificationEN 12252, LPG equipment and accessories - Equipping of LPG road tankers
EN 12493, LPG equipment and accessories - Welded steel pressure vessels for LPG road tankers - Design and
manufactureEN 13109, LPG equipment and accessories - LPG tanks and drums - Disposal
EN 13554, Non-destructive testing - Acoustic emission testing - General principles
EN 14025, Tanks for the transport of dangerous goods - Metallic pressure tanks - Design and construction
EN 14129, LPG Equipment and accessories - Pressure relief valves for LPG pressure vessels
EN ISO 3452-1, Non-destructive testing - Penetrant testing - Part 1: General principles (ISO 3452-1)
EN ISO 5579, Non-destructive testing - Radiographic testing of metallic materials using film and X- or
gamma rays - Basic rules (ISO 5579)EN ISO 9712, Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712)
EN ISO 17636-2, Non-destructive testing of welds - Radiographic testing - Part 2: X- and gamma-ray
techniques with digital detectors (ISO 17636-2)EN ISO 17638, Non-destructive testing of welds - Magnetic particle testing (ISO 17638)
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prEN 14334:2022 (E)
EN ISO 17640, Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and
assessment (ISO 17640)EN ISO 17643, Non-destructive testing of welds - Eddy current examination of welds by complex plane
analysis (ISO 17643)3 Terms and definitions
For the purposes of this document, the terms and definitions given in CEN/TS 16769 and the following
apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
test
technical operation(s) for determining one or more characteristics according to a specified procedure to
identify differences between specified, expected and actual results[SOURCE: EN ISO 10286:2021]
3.2
inspection
evaluation of conformity by observation and judgment accompanied as appropriate by measurement,
examination, testing or gauging[SOURCE: EN ISO 10286:2021]
4 Initial inspection and testing
Pressure vessels of road tankers and their equipment shall undergo, either together or separately, an
initial inspection and testing before being put into service by inspection bodies approved by the
competent authority. These inspections and tests shall include:— a check of conformity to the approved type in accordance with 6.2;
— a check of the design characteristics;
— an examination of the internal and external conditions in accordance with 6.3 and 6.4;
— a hydraulic pressure test in accordance with 6.6;— a leakproofness test in accordance with 6.7;
— a check of satisfactory operation of the equipment.
NOTE For the pressure vessels of road tankers and their equipment, the inspections and the tests in 6.6 and
6.7 conforming to the requirements of ADR see 6.8.2.4 of ADR.---------------------- Page: 8 ----------------------
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prEN 14334:2022 (E)
5 In-service inspection and testing
The requirements for in-service inspection and testing, as detailed below, shall apply to pressure vessels
designed and manufactured in accordance with EN 12493 or EN 14025 and equipped in accordance with
EN 12252, but can also be used for existing pressure vessel designs.All service equipment including every permanently attached hoses shall be inspected in the mounted
position for correct functioning and satisfactory condition (e.g. regarding wear).
The following inspections/tests/checks shall be carried out, under the supervision of the inspector, in
accordance with Table 1.NOTE According to ADR testing, inspection and certification duties are allocated to either the competent
authority or to inspection bodies. ADR includes detailed requirements on the qualification, obligations,
accreditation and approval of these inspection bodies as well as the frequency for inspections and tests.
Table 1 — Frequency of required inspections/testsIntermediate
Description Clauses Periodic Inspection
Inspection
Necessary documents 6.2 Inspection Inspection
Interior of the pressure vessel 6.3 — Inspection
Exterior of the pressure vessel 6.4 Inspection Inspection
Hydraulic pressure 6.6 — Test
Leakproofness 6.7 Test Test
Contents gauge 6.5 Inspection Inspection
Pressure gauge 6.5 Inspection Inspection
Foot valve 6.5 Inspection Inspection
External stop-valve 6.5 Inspection Inspection
Blanking flange or cap 6.5.1 Inspection Inspection
Drain valves 6.5 Inspection Inspection
6.5 Inspection Inspection
Temperature gauge
6.8.1 Inspection Test
Pressure relief valve (PRV)
6.5.5 Inspection Inspection
Sun shield
Pipework 6.6.4, 6.7 Test Test
Emergency shut-down system 6.8.2 Test Test
Hose assemblies 6.8.3 Inspection Test
Thermal expansion valves 6.5.1, 6.5.2 Inspection Inspection
Valves 6.5 Inspection Inspection
6.5.1, 6.5.2 Inspection Inspection
Compressor
6.5.1, 6.5.2 Inspection Inspection
Pump
6.5.1, 6.5.2 Inspection Inspection
Hose reel
6.5.6 Inspection Inspection
Metering system
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Earth connection 6.4.2 Inspection Inspection
6.5 Inspection Inspection
Earth reel
5.6 Inspection Inspection
Filters and strainers
Optional equipment according to EN 12252, Table 1.
An exceptional check shall be required when there is a possibility that the safety of the accessories,
vehicle LPG equipment, the pressure vessel, or structural equipment has been impaired as a result of
repairs, alterations or accidents.If an exceptional check fulfilling the requirements of a periodic inspection has been performed, then the
exceptional check may be considered to be a periodic inspection. If an exceptional check fulfilling the
requirements of an intermediate inspection has been performed, then the exceptional check may be
considered to be an intermediate inspection.6 Inspection and testing requirements
6.1 General
Additi
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