SIST EN 12807:2019
(Main)LPG equipment and accessories - Transportable refillable brazed steel cylinders for liquefied petroleum gas (LPG) - Design and construction
LPG equipment and accessories - Transportable refillable brazed steel cylinders for liquefied petroleum gas (LPG) - Design and construction
This European Standard specifies the minimum requirements for the design, construction and testing during manufacture of transportable refillable brazed steel Liquefied Petroleum Gas (LPG) cylinders, of water capacity from 0,5 l up to and including 15 l, exposed to ambient temperatures.
This European Standard applies only to cylinders having a circular cross-section without any longitudinal joint.
Flüssiggas-Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare, hartgelötete Flaschen aus Stahl für Flüssiggas (LPG) - Auslegung und Herstellung
Dieses Dokument legt die Mindestanforderungen an die Auslegung, die Herstellung und die während der Herstellung erfolgende Prüfung ortsbeweglicher, wiederbefüllbarer, hartgelöteter Flaschen aus Stahl für Flüssiggas (LPG, en: liquefied petroleum gas) mit einem Fassungsraum von 0,5 l bis einschließlich 15 l fest, die Umgebungstemperaturen ausgesetzt sind.
Dieses Dokument gilt nur für Flaschen mit kreisförmigem Querschnitt ohne Längsnaht.
Équipement et accessoires pour GPL - Bouteilles transportables et rechargeables en acier brasé pour gaz de pétrole liquéfié (GPL) - Conception et fabrication
Le présent document définit les exigences minimales concernant la conception, la fabrication et les essais lors de la fabrication des bouteilles transportables et rechargeables en acier brasé pour gaz de pétrole liquéfiés (GPL), d’une capacité en eau comprise entre 0,5 l et 15 l inclus et exposées aux températures ambiantes.
Le présent document s’applique exclusivement aux bouteilles à section circulaire ne comportant pas de joints longitudinaux.
Oprema in pribor za utekočinjeni naftni plin (UNP) - Premične, ponovno polnljive, trdo spajkane jeklenke iz jekla za UNP - Konstruiranje in izdelava
Ta evropski standard določa minimalne zahteve za konstruiranje, izdelavo in preskušanje med proizvodnjo premičnih, ponovno polnljivih trdo spajkanih jeklenk iz jekla za utekočinjeni naftni plin (LPG) s prostornino vode od 0,5 l do vključno 15 l, ki so izpostavljene temperaturi okolja.
Ta evropski standard se uporablja samo za jeklenke s krožnim prečnim prerezom brez vzdolžnega spoja.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 12807:2019
01-december-2019
Nadomešča:
SIST EN 12807:2010
Oprema in pribor za utekočinjeni naftni plin (UNP) - Premične, ponovno polnljive,
trdo spajkane jeklenke iz jekla za UNP - Konstruiranje in izdelava
LPG equipment and accessories - Transportable refillable brazed steel cylinders for
liquefied petroleum gas (LPG) - Design and construction
Flüssiggas-Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare, hartgelötete
Flaschen aus Stahl für Flüssiggas (LPG) - Auslegung und Herstellung
Équipement et accessoires pour GPL - Bouteilles transportables et rechargeables en
acier brasé pour gaz de pétrole liquéfié (GPL) - Conception et fabrication
Ta slovenski standard je istoveten z: EN 12807:2019
ICS:
23.020.35 Plinske jeklenke Gas cylinders
SIST EN 12807:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 12807:2019
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SIST EN 12807:2019
EN 12807
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2019
EUROPÄISCHE NORM
ICS 23.020.35 Supersedes EN 12807:2009
English Version
LPG equipment and accessories - Transportable refillable
brazed steel cylinders for liquefied petroleum gas (LPG) -
Design and construction
Équipement et accessoires pour GPL - Bouteilles Flüssiggas-Geräte und Ausrüstungsteile -
transportables et rechargeables en acier brasé pour Ortsbewegliche, wiederbefüllbare, hartgelötete
gaz de pétrole liquéfié (GPL) - Conception et Flaschen aus Stahl für Flüssiggas (LPG) - Auslegung
fabrication und Herstellung
This European Standard was approved by CEN on 15 March 2019.
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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12807:2019 E
worldwide for CEN national Members.
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EN 12807:2019 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols . 7
3.1 Terms and definitions . 7
3.2 Symbols . 7
4 Materials . 8
5 Design . 9
5.1 General requirements . 9
5.2 Calculation of cylindrical shell thickness . 10
5.3 Design of torispherical and semi-ellipsoidal ends concave to pressure . 10
5.4 Design of ends of shapes other than torispherical and semi-ellipsoidal . 14
5.5 Minimum wall thickness . 14
5.6 Design of openings . 15
5.7 Valve protection . 15
5.8 Non-pressure containing attachments . 15
6 Construction and workmanship . 15
6.1 Brazing qualification . 15
6.2 Plates and pressed parts . 16
6.3 Brazed joints . 16
6.4 Tolerances . 16
6.4.1 Out of roundness . 16
6.4.2 Straightness . 17
6.4.3 Verticality. 17
6.5 Heat treatment . 17
6.6 Protective coating . 17
6.7 Closure of openings . 17
7 Tests and examinations . 17
7.1 General . 17
7.2 Types of test and evaluation of the test results . 17
7.3 Material testing . 18
7.4 Tensile test . 19
7.4.1 Parent material . 19
7.4.2 Joints . 20
7.5 Bend test . 20
7.5.1 Procedure. 20
7.5.2 Requirements . 21
7.6 Burst test under hydraulic pressure . 22
7.6.1 Procedure. 22
7.6.2 Requirements . 23
7.7 Pressure test . 24
7.7.1 Procedure. 24
7.7.2 Requirements . 24
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7.8 Ultrasonic examination . 24
7.8.1 Procedure . 24
7.8.2 Assessment. 24
7.8.3 Requirements . 24
7.9 Macro examination . 24
7.9.1 Procedure . 24
7.9.2 Requirements . 25
7.10 Visual examination of the surface of the joint . 25
7.10.1 Procedure . 25
7.10.2 Requirements . 25
7.11 Fatigue test . 25
7.11.1 Procedure . 25
7.11.2 Requirement . 25
8 Technical requirements for type approval . 25
8.1 Extent of testing . 25
8.2 Cylinder types . 26
8.3 Type approval certificate . 26
9 Production testing and examination requirements . 27
9.1 Tests and examinations applicable to all cylinders . 27
9.2 Ultrasonic examination . 27
9.3 Macro examination . 27
9.4 Examination of the valve boss joint . 27
9.5 Examination of non-pressure containing joints . 27
9.6 Unacceptable imperfections found by the ultrasonic or macro examinations . 28
9.7 Batch testing (Mechanical / Burst tests) . 28
9.7.1 Batch . 28
9.7.2 Inspection lots. 28
9.7.3 Rate of sampling . 28
9.7.4 Additional checks . 29
9.8 Failure to meet mechanical and burst test requirements . 30
9.8.1 Mechanical . 30
9.8.2 Burst . 30
9.8.3 Re-test . 30
9.8.4 Resubmission of an inspection lot . 30
10 Marking . 31
11 Certificates . 31
Bibliography . 32
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EN 12807:2019 (E)
European foreword
This document (EN 12807:2019) 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 January 2020, and conflicting national standards shall
be withdrawn at the latest by January 2020.
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 12807:2009.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
The main technical changes include the updating of:
— the normative references;
— the environmental considerations; and
— definitions.
This document has been submitted for reference into the RID [6] and/or in the ADR [5].
All stages of the manufacture, distribution and disposal of these cylinders may have an effect on the
environment; CEN/TS 16765 sets out environmental considerations for this document.
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, North Macedonia, Norway, Poland, Portugal,
Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
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Introduction
This document 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 document that the execution of its provisions is entrusted to
appropriately qualified and experienced people.
All pressures are gauge 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 may be
beneficial to refer to the leaflet “measurement uncertainty leaflet (SP INFO 2000 27 uncertainty pdf)” [7].
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1 Scope
This document specifies the minimum requirements for the design, construction and testing during
manufacture of transportable refillable brazed steel Liquefied Petroleum Gas (LPG) cylinders, of water
capacity from 0,5 l up to and including 15 l, exposed to ambient temperatures.
This document applies only to cylinders having a circular cross-section without any longitudinal joint.
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.
1
EN 1044 , Brazing — Filler metals
2
EN 10002-1 , Metallic materials - Tensile testing — Part 1: Method of test at ambient temperature
EN 10204, Metallic products — Types of inspection documents
EN 12797, Brazing — Destructive tests of brazed joints
EN 12799:2000, Brazing — Non-destructive examination of brazed joints
EN 13134, Brazing — Procedure approval
EN 14894, LPG equipment and accessories — Cylinder and drum marking
CEN/TS 16765, LPG equipment and accessories — Environmental considerations for CEN/TC 286
standards
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 11117:2008, Gas cylinders — Valve protection caps and valve guards — Design, construction and
tests (ISO 11117:2008)
EN ISO 11363-1, Gas cylinders - 17E and 25E taper threads for connection of valves to gas cylinders – Part 1:
Specifications (ISO 11363-1)
EN ISO 13585, Brazing — Qualification test of brazers and brazing operators (ISO 13585)
EN ISO 17672, Brazing — Filler metals (ISO 17672)
1
This standard has been withdrawn and was replaced by EN ISO 17672.
2
This standard has been withdrawn and was replaced by EN ISO 6892-1.
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3 Terms, definitions and symbols
3.1 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:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
yield strength
upper yield strength ReH or, for steels that do not exhibit a definite yield point, the 0,2 % proof strength
Rp0,2
3.1.2
normalized
condition resulting from heat treatment to a uniform temperature above the upper critical point (Ac3) of
the steel and then cooled under controlled conditions
3.2 Symbols
For the purposes of this document, the following symbols apply.
a Calculated minimum thickness of the cylindrical shell, in millimetres
A Percentage elongation after fracture
b Calculated minimum thickness of the end of the cylinder, in millimetres
C Shape factor for ends (see Table 2, Figure 2 and Figure 3)
D Outside diameter of the cylinder as given in the design drawing (see Figure 1), in millimetres
D Width of the bend test mandrel (see Figure 7), in millimetres
p
e Actual thickness of the material in the finished cylinder (at the point under consideration), in
millimetres
h Height of the cylindrical part of the end (see Figure 1), in millimetres
H Outside height of the domed part of the end (see Figure 1), in millimetres
L Original gauge length of the test piece, in accordance with EN 10002-1, in millimetres
o
n Ratio of width of bend test mandrel to the thickness of the test piece at the joint (see Table 5)
P )
c 5 5 2
Calculation pressure (1 bar = 10 Pa = 10 N/m , used to calculate the minimum required
thickness of the cylindrical shell and ends, in bar
P Maximum pressure attained during the burst test, in bar
b
P Actual test pressure applied to the cylinder by the manufacturer, in bar
h
r Inside knuckle radius of the end, in millimetres
R Inside spherical radius of the end, in millimetres
R Minimum tensile strength guaranteed by the cylinder manufacturer for the finished cylinder, in
g
2
N/mm
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R Minimum value of yield strength guaranteed by the cylinder manufacturer for the finished
o
2
cylinder, in N/mm
2
R Actual value of tensile strength determined by the tensile test specified in 7.4, in N/mm
m
R Upper yield strength, in newtons per square millimetre, as defined in EN 10002-1
eH
R Proof strength, non-proportional extension in newtons per square millimetre, as defined in
p0,2
EN 10002-1
t Thickness of the bend test specimen at the joint
4 Materials
4.1 Materials for shells and end pressings shall be in accordance with EN ISO 11363-1 or other
equivalent material specification or standard meeting the requirements of Table 1. Alternative material
specifications shall, as a minimum, specify chemical composition, mechanical properties, heat treatment
and delivery conditions.
The materials shall be suitable for a brazing temperature of 1 100 °C for the duration of the brazing
operation, without significant grain growth.
NOTE “Materials” refer to materials in the state before any specific transformation occurring during the
manufacturing process.
4.2 All parts brazed to the cylinder shall be brazable and made of material compatible with the cylinder
material.
4.3 The brazing consumables (see EN 1044) in the form of wire or paste shall be such that they are
capable of giving consistent joints with minimum tensile strength at least equal to that specified for the
parent materials in the finished cylinder.
4.4 The cylinder manufacturer shall obtain certificates showing the chemical analysis and details of the
mechanical properties of the steel supplied for the construction of the pressure retaining parts. The
certificates/reports shall be in accordance with EN 10204, Type 3.1 or higher for shells and ends and
Type 2.2 or higher for the valve boss.
4.5 The manufacturer shall maintain a system of identification for the materials used in the
construction in order that all materials for pressure parts in the completed cylinder can be traced to their
origin.
4.6 All stages of the manufacture, distribution and disposal of these cylinders may have an effect on the
environment; CEN/TS 16765 sets out environmental considerations for this document.
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Table 1 — Material requirements
Limits
Element
%
Materials, other than EN ISO 11363-1, used for the fabrication of
cylinders shall be of brazable quality and the following limits shall
not be exceeded in the cast analysis:
Carbon 0,22 max.
Silicon 0,50 max.
Manganese 0,30 min. to 1,60 max.
Phosphorus 0,025 max.
Sulphur 0,020 max.
Phosphorus plus sulphur 0,040 max.
Use of micro-alloying elements such as niobium, titanium and
vanadium shall be limited to the following contents:
Niobium 0,05 max.
Titanium 0,05 max.
Vanadium 0,05 max.
Niobium plus vanadium 0,08 max.
Where other micro-alloying elements are used, their presence and amounts shall be reported,
together with the above, in the steel manufacturer's certificate.
Should check analyses be required, they shall be carried out either on specimens taken during
manufacture from material in the form as supplied by the steel maker to the cylinder
manufacturer or from finished cylinders.
5 Design
5.1 General requirements
5.1.1 The calculation of the wall thickness of the pressure parts shall be based on the yield strength of
the material.
5.1.2 For calculation purposes, the value of the yield strength R is limited to a maximum of 0,85 R .
o g
5.1.3 The calculation pressure (Pc) shall be not less than the higher of:
— absolute developed pressure at 65 °C of the highest pressure LPG mixture to be filled minus 1 bar, or
— 10 bar.
NOTE ADR [5] and RID [6], P200 specifies test pressures for tabulated mixtures of LPG (UN 1965
HYDROCARBON GAS MIXTURE LIQUEFIED, N.O.S) irrespective of the absolute pressure at 65 °C.
5.1.4 A drawing, which includes full dimensions that define the cylinder type (see 8.2) and the
specification of the material, shall be produced.
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5.1.5 All stages of the manufacture, distribution and disposal of these cylinders may have an effect on
the environment; CEN/TS 16765 sets out environmental considerations for this document.
5.2 Calculation of cylindrical shell thickness
The wall thickness, a, of the cylindrical shell shall be not less than:
P × D
c
a = (1)
(15 × RP) +
oc
5.3 Design of torispherical and semi-ellipsoidal ends concave to pressure
5.3.1 The shape of ends shall be such that the following conditions are fulfilled:
— for torispherical ends R ≤ D ; r ≥ 0,1 D ; h ≥ 4 b (see Figure 1),
— for semi-ellipsoidal ends H ≥ 0,2 D ; h ≥ 4 b (see Figure 1).
NOTE For torispherical ends the height H can be calculated using:
DD
(2)
H= (Rb+ ) - [(Rb+ ) - ]× [(Rb+ )+ - 2(r+ )b ]
22
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Key
1 torispherical end
2 semi-ellipsoidal end
Figure 1 — Illustration of cylinder ends concave to pressure
5.3.2 The wall thickness, a, of any cylindrical part shall be calculated in accordance with 5.2.
This requirement is not applicable where the length of the cylindrical portion of the cylinder, measured
between the beginning of the domed parts of the two ends, is not more than 2bD . In this case the wall
thickness shall be not less than that of the domed part.
The thickness, b, of the domed part shall be not less than:
P ××DC
C
b= (3)
()15×+RP
OC
In this formula, C is a shape factor, the value of which depends on the ratio H/D.
The value of C shall be obtained from Figure 2 or Figure 3 and Table 2.
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Figure 2 — Values of shape factor C for H/D between 0,2 and 0,25
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Figure 3 — Values of shape factor C for H/D between 0,25 and 0,5
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Table 2 — Relationship between H/D and shape factor C
H/D C H/D C
0,25 1,000 0,38 0,612
0,26 0,931 0,39 0,604
0,27 0,885 0,40 0,596
0,28 0,845 0,41 0,588
0
...
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