Salvage pressure receptacles

To permit the safe handling and disposal of the pressure receptacles carried within the salvage
pressure receptacle, the design may include equipment not otherwise used for cylinders or pressure
drums such as flat heads, quick opening devices and openings in the cylindrical part.

Instructions on the safe handling and use of the salvage pressure receptacle shall be clearly shown in
the documentation for the application to the competent authority of the country of approval and shall
form part of the approval certificate. In the approval certificate, the pressure receptacles authorized to
be carried in a salvage pressure receptacle shall be indicated. A list of the materials of construction of
all parts likely to be in contact with the dangerous goods shall also be included.

A copy of the approval certificate shall be delivered by the manufacturer to the owner of a salvage
pressure receptacle.

The marking of salvage pressure receptacles according to 6.2.3 shall be determined by the competent
authority of the country of approval taking into account suitable marking provisions of 6.2.3.9 as
appropriate. The marks shall include the water capacity and test pressure of the salvage pressure
receptacle.
 
2 Distinguishing sign of the State of registration used on motor vehicles and trailers in international road traffic,
e.g. in accordance with the Geneva Convention on Road Traffic of 1949 or the Vienna Convention on Road Traffic of
1968.

Requirements for non-UN pressure receptacles designed, constructed and tested according to referenced standards

NOTE: Persons or bodies identified in standards as having responsibilities in accordance with ADR
shall meet the requirements of ADR.

Design, construction and initial inspection and test

 
Type approval certificates shall be issued in accordance with 1.8.7. The standards referenced in 
the
table below shall be applied for the issue of type approvals as indicated in column (4) to meet the 
requirements of Chapter 6.2 referred to in column (3). The standards shall be applied in accordance 
with 1.1.5. Column (5) gives the latest date when existing type approvals shall be withdrawn  
according to 1.8.7.2.4; if no date is shown the type approval remains valid until it expires.
 
Since 1 January 2009 the use of the referenced standards has been mandatory. Exceptions are dealt 
with in 6.2.5.
 
If more than one standard is referenced for the application of the same requirements, only one of 
them shall be applied, but in full unless otherwise specified in the table below.
 
The scope of application of each standard is defined in the scope clause of the standard unless
otherwise specified in the Table below.
 
 
 

 

Reference

 

Title of document

Applicable sub- sections and paragraphs

Applicable for new type approvals or for renewals

Latest date for withdrawal of existing type approvals

(1)

(2)

(3)

(4)

(5)

for design and construction

Annex I, Parts 1 to 3 to 84/525/EEC

Council directive on the approximation of the laws of the Member States relating to seamless steel gas cylinders, published in the Official Journal of the European Communities No. L300 of 19.11.1984

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

Annex I, Parts 1 to 3 to 84/526/EEC

Council directive on the approximation of the laws of the Member States relating to seamless, unalloyed aluminium and aluminium alloy gas cylinders, published in the Official Journal of the European Communities No. L300 of 19.11.1984

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

Annex I, Parts 1 to 3 to 84/527/EEC

Council directive on the approximation of the laws of the Member States relating to welded unalloyed steel gas cylinders, published in the Official Journal of the European Communities No. L300 of 19.11.1984

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 1442:1998 + AC:1999

Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) - Design and construction

 

6.2.3.1 and 6.2.3.4

Between 1 July

2001 and 30 June

2007

 

31 December 2012

EN 1442:1998 + A2:2005

Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) - Design and construction

 

6.2.3.1 and 6.2.3.4

Between 1 January

2007 and

31 December

2010

 

EN 1442:2006 + A1:2008

Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) - Design and construction

 

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 1800:1998 + AC:1999

Transportable gas cylinders - Acetylene cylinders - Basic requirements and definitions

 

6.2.1.1.9

Between 1 July

2001 and

31 December

2010

 

EN 1800:2006

Transportable gas cylinders - Acetylene cylinders - Basic requirements, definitions and type testing

 

6.2.1.1.9

Between 1 January

2009 and 31

December 2016

 

 

Reference

 

Title of document

Applicable sub- sections and paragraphs

Applicable for new type approvals or for renewals

Latest date for withdrawal of existing type approvals

(1)

(2)

(3)

(4)

(5)

 

EN ISO 3807:2013

Gas cylinders – Acetylene cylinders – Basic requirements and type testing NOTE: Fusible plugs shall not be

fitted.

 

6.2.1.1.9

 

Until further notice

 

EN 1964-1:1999

Transportable gas cylinders – Specifications for the design and construction of refillable transportable seamless steel gas cylinders of capacity from 0.5 litres up to 150 litres – Part 1: Cylinders made of seamless steel with a Rm value of less than 1 100 MPa

 

6.2.3.1 and 6.2.3.4

 

Until 31

December 2014

 

EN 1975:1999 (except Annex G)

Transportable gas cylinders – Specifications for the design and construction of refillable transportable seamless aluminium and aluminium alloy gas cylinders of capacity from 0.5 litres up to 150 litres

 

6.2.3.1 and 6.2.3.4

 

Until 30 June

2005

 

EN 1975:1999 + A1:2003

Transportable gas cylinders – Specifications for the design and construction of refillable transportable seamless aluminium and aluminium alloy gas cylinders of capacity from 0.5 litres up to 150 litres

 

6.2.3.1 and 6.2.3.4

 

Between 1 January

2009 and 31

December 2016

 

EN ISO 7866:2012

+ AC:2014

Gas cylinders – Refillable seamless aluminium alloy gas cylinders – Design, construction and testing (ISO 7866:2012)

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN ISO 11120:1999

Gas cylinders – Refillable seamless steel tubes for compressed gas transport of water capacity between 150 litres and 3 000 litres – Design, construction and testing

 

6.2.3.1 and 6.2.3.4

 

Between 1 July

2001 and 30 June

2015

31 December 2015 for tubes marked with the letter "H" in accordance with

6.2.2.7.4 (p)

EN ISO 11120:1999

+ A1:2013

Gas cylinders – Refillable seamless steel tubes for compressed gas transport of water capacity between 150 litres and 3 000 litres – Design, construction and testing

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 1964-3:2000

Transportable gas cylinders – Specifications for the design and construction of refillable transportable seamless steel gas cylinders of capacity from 0.5 litre up to 150 litres – Part 3: Cylinders made of seamless stainless steel with an Rm value of less than

1 100 MPa

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 12862:2000

Transportable gas cylinders- Specifications for the design and construction of refillable transportable welded aluminium alloy gas cylinders

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 1251-2:2000

Cryogenic vessels – Transportable, vacuum insulated, of not more than 1 000 litres volume – Part 2: Design, fabrication, inspection and testing

NOTE: Standard EN 1252-1:1998

referenced in this standard is also applicable to closed cryogenic receptacles for the carriage of UN No. 1972 (METHANE, REFRIGERATED LIQUID or NATURAL GAS, REFRIGERATED LIQUID).

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

 

Reference

 

Title of document

Applicable sub- sections and paragraphs

Applicable for new type approvals or for renewals

Latest date for withdrawal of existing type approvals

(1)

(2)

(3)

(4)

(5)

EN 12257:2002

Transportable gas cylinders – Seamless, hoop wrapped composite cylinders

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 12807:2001

(except Annex A)

Transportable refillable brazed steel cylinders for liquefied petroleum gas (LPG) – Design and construction

 

6.2.3.1 and 6.2.3.4

Between 1 January

2005 and 31

December 2010

 

31 December 2012

EN 12807:2008

Transportable refillable brazed steel cylinders for liquefied petroleum gas (LPG) – Design and construction

 

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 1964-2:2001

Transportable gas cylinders – Specification for the design and construction of refillable transportable seamless steel gas cylinders of water capacities from 0.5 litre up to and including 150 litre – Part 2: Cylinders made of seamless steel with an Rm value of 1 100 MPa and above

 

6.2.3.1 and 6.2.3.4

 

Until 31

December 2014

 

EN ISO 9809-1:2010

Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and testing – Part 1: Quenched and tempered steel cylinders with tensile strength less than 1100 MPa (ISO 9809-1:2010)

6.2.3.1 and 6.2.3.4

Until further notice

 

EN ISO 9809-2:2010

Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and testing – Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal to 1100 MPa (ISO 9809-2:2010)

6.2.3.1 and 6.2.3.4

Until further notice

 

EN ISO 9809-3:2010

Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and testing – Part 3:

Normalized steel cylinders (ISO 9809-3:2010)

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 13293:2002

Transportable gas cylinders – Specification for the design and construction of refillable transportable seamless normalised carbon manganese steel gas cylinders of water capacity up to 0.5 litre for compressed, liquefied and dissolved gases and up to 1 litre for carbon dioxide

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 13322-1:2003

Transportable gas cylinders – Refillable welded steel gas cylinders – Design and construction – Part 1: Welded steel

 

6.2.3.1 and 6.2.3.4

Until 30 June

2007

 

EN 13322-1:2003 + A1:2006

Transportable gas cylinders – Refillable welded steel gas cylinders – Design and construction – Part 1: Welded steel

 

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 13322-2:2003

Transportable gas cylinders – Refillable welded stainless steel gas cylinders – Design and construction – Part 2: Welded stainless steel

 

6.2.3.1 and 6.2.3.4

 

Until 30 June

2007

 

EN 13322-2:2003 + A1:2006

Transportable gas cylinders – Refillable welded stainless steel gas cylinders – Design and construction – Part 2: Welded stainless steel

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 12245:2002

Transportable gas cylinders – Fully wrapped composite cylinders

 

6.2.3.1 and 6.2.3.4

Until

31 December

2014

 

EN 12245:2009

+A1:2011

Transportable gas cylinders – Fully wrapped composite cylinders

6.2.3.1 and 6.2.3.4

Until further notice

 

 

Reference

 

Title of document

Applicable sub- sections and paragraphs

Applicable for new type approvals or for renewals

Latest date for withdrawal of existing type approvals

(1)

(2)

(3)

(4)

(5)

EN 12205:2001

Transportable gas cylinders – Non refillable metallic gas cylinders

 

6.2.3.1 and 6.2.3.4

Between 1 January

2005 and 31

December 2017

 

31 December 2018

EN ISO 11118:2015

Gas cylinders – Non-refillable metallic gas cylinders – Specification and test methods

6.2.3.1, 6.2.3.3

and 6.2.3.4

Until further notice

 

EN 13110:2002

Transportable refillable welded aluminium cylinders for liquefied petroleum gas (LPG) – Design and construction

 

6.2.3.1 and 6.2.3.4

Until

31 December

2014

 

EN 13110:2012

Transportable refillable welded aluminium cylinders for liquefied petroleum gas (LPG) – Design and construction

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 14427:2004

Transportable refillable fully wrapped composite cylinders for liquefied petroleum gases - Design and construction

NOTE: This standard applies only to cylinders equipped with pressure relief valves.

 

6.2.3.1 and 6.2.3.4

 

Between 1 January

2005 and 30 June

2007

 

EN 14427:2004 + A1:2005

Transportable refillable fully wrapped composite cylinders for liquefied petroleum gases - Design and construction

NOTE 1: This standard applies only to cylinders equipped with pressure relief valves.

NOTE 2: In 5.2.9.2.1 and 5.2.9.3.1,

both cylinders shall be subject to a burst test when they show damage equal to or worse than the rejection criteria.

 

6.2.3.1 and 6.2.3.4

 

Between 1 January

2007 and 31

December 2016

 

EN 14427:2014

LPG Equipment and accessories – Transportable refillable fully wrapped composite cylinders for LPG – Design and construction

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 14208:2004

Transportable gas cylinders – Specification for welded pressure drums up to 1000 litres capacity for the transport of gases – Design and construction

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 14140:2003

Transportable refillable welded steel cylinders for Liquefied Petroleum Gas (LPG) – Alternative design and construction

 

6.2.3.1 and 6.2.3.4

Between 1 January

2005 and

31 December

2010

 

EN 14140:2003 + A1:2006

LPG equipment and accessories – Transportable refillable welded steel cylinders for LPG – Alternative design and construction

 

6.2.3.1 and 6.2.3.4

Between 1 January

2009 and 31

December 2018

 

EN 14140:2014

+AC:2015 (except over- moulded cylinders)

LPG Equipment and accessories – Transportable refillable welded steel cylinders for LPG – Alternative design and construction

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 13769:2003

Transportable gas cylinders – Cylinder bundles – Design, manufacture, identification and testing

 

6.2.3.1 and 6.2.3.4

Until 30 June

2007

 

EN 13769:2003 + A1:2005

Transportable gas cylinders – Cylinder bundles – Design, manufacture, identification and testing

 

6.2.3.1 and 6.2.3.4

Until

31 December

2014

 

 

Reference

 

Title of document

Applicable sub- sections and paragraphs

Applicable for new type approvals or for renewals

Latest date for withdrawal of existing type approvals

(1)

(2)

(3)

(4)

(5)

EN ISO 10961:2012

Gas cylinders – Cylinder bundles – Design, manufacture, testing and inspection

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 14638-1:2006

Transportable gas cylinders – Refillable welded receptacles of a capacity not exceeding 150 litres – Part 1 Welded austenitic stainless steel cylinders made to a design justified by experimental methods

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 14893:2006 + AC:2007

LPG equipment and accessories – Transportable LPG welded steel pressure drums with a capacity between 150 and 1 000 litres

 

6.2.3.1 and 6.2.3.4

Between 1 January

2009 and 31

December 2016

 

EN 14893:2014

LPG equipment and accessories – Transportable LPG welded steel pressure drums with a capacity between 150 and 1 000 litres

6.2.3.1 and 6.2.3.4

Until further notice

 

EN 14638-3:2010 + AC:2012

Transportable gas cylinders — Refillable welded receptacles of a capacity not exceeding 150 litres — Part 3: Welded carbon steel cylinders made to a design justified by experimental methods

6.2.3.1 and 6.2.3.4

Until further notice

 

for closures

EN 849:1996 (except Annex A)

Transportable gas cylinders – Cylinder valves – Specification and type testing

6.2.3.1 and 6.2.3.3

Until 30 June

2003

31 December 2014

EN 849:1996 + A2:2001

Transportable gas cylinders – Cylinder valves – Specification and type testing

6.2.3.1 and 6.2.3.3

Until 30 June

2003

31 December 2016

EN ISO 10297:2006

Transportable gas cylinders – Cylinder valves – Specification and type testing

 

6.2.3.1 and 6.2.3.3

Between 1 January

2009 and 31

December 2018

 

 

EN ISO 10297:2014

Gas cylinders – Cylinder valves – Specification and type testing (ISO/DIS 10297:2012)

 

6.2.3.1 and 6.2.3.3

Until further notice

 

EN ISO 14245:2010

Gas cylinders – Specifications and testing of LPG cylinder valves – Self- closing

(ISO 14245:2006)

6.2.3.1 and 6.2.3.3

Until further notice

 

EN 13152:2001

Specifications and testing of LPG – Cylinder valves – Self closing

 

6.2.3.1 and 6.2.3.3

Between 1 January

2005 and

31 December

2010

 

EN 13152:2001 + A1:2003

Specifications and testing of LPG – Cylinder valves – Self closing

 

6.2.3.1 and 6.2.3.3

Between 1 January

2009 and

31 December

2014

 

EN ISO 15995:2010

Gas cylinders – Specifications and testing of LPG cylinder valves – Manually operated (ISO 15995:2006)

6.2.3.1 and 6.2.3.3

Until further notice

 

EN 13153:2001

Specifications and testing of LPG – Cylinder valves – Manually operated

 

6.2.3.1 and 6.2.3.3

Between 1 January

2005 and

31 December

2010

 

EN 13153:2001 + A1:2003

Specifications and testing of LPG – Cylinder valves – Manually operated

 

6.2.3.1 and 6.2.3.3

Between 1 January

2009 and

31 December

2014

 

EN ISO 13340:2001

Transportable gas cylinders – Cylinder valves for non-refillable cylinders – Specification and prototype testing

6.2.3.1 and 6.2.3.3

Between 1 January

2011 and 31

December 2017

31 December 2018

 

Reference

 

Title of document

Applicable sub- sections and paragraphs

Applicable for new type approvals or for renewals

Latest date for withdrawal of existing type approvals

(1)

(2)

(3)

(4)

(5)

EN 13648-1:2008

Cryogenic vessels – Safety devices for protection against excessive pressure – Part 1: Safety valves for cryogenic service

 

6.2.3.1 and 6.2.3.4

 

Until further notice

 

EN 1626:2008 (except valve category B)

Cryogenic vessels – Valves for cryogenic service

6.2.3.1 and 6.2.3.4

Until further notice

 

 

EN 13175:2014

LPG Equipment and accessories – Specification and testing for Liquefied Petroleum Gas (LPG) pressure vessel valves and fittings

 

6.2.3.1 and 6.2.3.3

 

Until further notice

 

EN ISO 17871:2015

Gas cylinders – Quick-release cylinder valves - Specification and type testing (ISO 17871:2015)

6.2.3.1, 6.2.3.3

and 6.2.3.4

Until further notice

 

EN 13953:2015

LPG equipment and accessories – Pressure relief valves for transportable refillable cylinders for Liquefied Petroleum Gas (LPG)

NOTE: The final sentence of the scope shall not apply.

6.2.3.1, 6.2.3.3

and 6.2.3.4

Until further notice

 

 

EN ISO 14246:2014

Gas cylinders – Cylinder valves – Manufacturing tests and examinations (ISO 14246:2014)

 

6.2.3.1 and 6.2.3.4

Until further notice

 

 

Periodic inspection and test

The standards referenced in the table below shall be applied for the periodic inspection and test of
pressure receptacles as indicated in column (3) to meet the requirements of 6.2.3.5. The standards
shall be applied in accordance with 1.1.5.
The use of a referenced standard is mandatory.
When a pressure receptacle is constructed in accordance with the provisions of 6.2.5 the procedure for
periodic inspection if specified in the type approval shall be followed.
If more than one standard is referenced for the application of the same requirements, only one of them
shall be applied, but in full unless otherwise specified in the table below.
The scope of application of each standard is defined in the scope clause of the standard unless
otherwise specified in the Table below.
 

Reference

Title of document

Applicable

(1)

(2)

(3)

for periodic inspection and test

EN 1251-3:2000

Cryogenic vessels – Transportable, vacuum insulated, of not more than 1 000 litres volume – Part 3: Operational requirements

Until further notice

EN 1968:2002 + A1:2005

(except Annex B)

Transportable gas cylinders – Periodic inspection and testing of seamless steel gas cylinders

Until further notice

EN 1802:2002 (except Annex B)

Transportable gas cylinders – Periodic inspection and testing of seamless aluminium alloy gas cylinders

Until further notice

EN ISO 10462:2013

Gas cylinders – Acetylene cylinders – Periodic inspection and maintenance (ISO 10462:2013)

Until further notice

EN 1803:2002 (except Annex B)

Transportable gas cylinders – Periodic inspection and testing of welded steel gas cylinders

Until further notice

EN ISO 11623:2002 (except

clause 4)

Transportable gas cylinders – Periodic inspection and testing of composite gas cylinders

Until 31 December 2018

EN ISO 11623:2015

Gas cylinders – Composite construction – Periodic inspection and testing

Mandatorily from 1 January 2019

Reference

Title of document

Applicable

(1)

(2)

(3)

EN ISO 22434:2011

Transportable gas cylinders – Inspection and maintenance of cylinder valves (ISO 22434:2006)

Until further notice

EN 14876:2007

Transportable gas cylinders – Periodic inspection and testing of welded steel pressure drums

Until further notice

EN 14912:2005

LPG equipment and accessories – Inspection and maintenance of LPG cylinder valves at time of periodic inspection of cylinders

Until 31 December 2018

EN 14912:2015

LPG equipment and accessories – Inspection and maintenance of LPG cylinder valves at time of periodic inspection of cylinders

Mandatorily from 1 January 2019

EN 1440:2008 + A1:2012

(except Annexes G and H)

LPG equipment and accessories – Periodic inspection of transportable refillable LPG cylinders

Until 31 December 2018

EN 1440:2016 (except Annex C)

LPG equipment and accessories – Transportable refillable traditional welded and brazed steel Liquefied Petroleum Gas (LPG) cylinders – Periodic inspection

Mandatorily from 1 January 2019

EN 16728:2016 (except clause 3.5, Annex F and Annex G)

LPG equipment and accessories – Transportable refillable LPG cylinders other than traditional welded and brazed steel cylinders – Periodic inspection

Mandatorily from 1 January 2019

EN 15888: 2014

Transportable gas cylinders - Cylinder bundles - Periodic inspection and testing

Until further notice

 

Requirements for non-UN pressure receptacles not designed, constructed and tested according to referenced standards

 
To reflect scientific and technical progress or where no standard is referenced in 6.2.2 or 6.2.4, or to
deal with specific aspects not addressed in a standard referenced in 6.2.2 or 6.2.4, the competent
authority may recognize the use of a technical code providing the same level of safety.
In the type approval the issuing body shall specify the procedure for periodic inspections if the
standards referenced in 6.2.2 or 6.2.4 are not applicable or shall not be applied.
The competent authority shall transmit to the secretariat of UNECE a list of the technical codes that it
recognises. The list should include the following details: name and date of the code, purpose of the
code and details of where it may be obtained. The secretariat shall make this information publicly
available on its website.
A standard which has been adopted for reference in a future edition of the ADR may be approved by
the competent authority for use without notifying the secretariat of UNECE.
The requirements of 6.2.1, 6.2.3 and the following requirements however shall be met.
NOTE: For this section, the references to technical standards in 6.2.1 shall be considered as
references to technical codes.

Materials

 
The  following  provisions  contain  examples  of  materials  that  may  be  used  to  comply  with 
  the
requirements for materials in 6.2.1.2:
 
(a)     Carbon steel for compressed, liquefied, refrigerated liquefied gases and dissolved gases as 
    well as for substances not in Class 2 listed in Table 3 of packing instruction P200 of 4.1.4.1;
 
(b) Alloy steel (special steels), nickel, nickel alloy (such as monel) for compressed, liquefied, 
refrigerated liquefied gases and dissolved gases as well as for substances not in Class 2 listed in 
Table 3 of packing instruction P200 of 4.1.4.1;
 
(c)          Copper for:
 
(i)          gases of classification codes 1A, 1O, 1F and 1TF, whose filling pressure referred to   
a temperature of 15 °C does not exceed 2 MPa (20 bar);
 
(ii)  gases of classification code 2A and also UN No. 1033 dimethyl ether; UN No. 1037  ethyl   
chloride;   UN No. 1063   methyl   chloride;   UN No. 1079   sulphur dioxide;
 
UN No. 1085 vinyl bromide; UN No. 1086 vinyl chloride; and UN No. 3300
ethylene oxide and carbon dioxide mixture with more than 87% ethylene oxide;
(iii) gases of classification codes 3A, 3O and 3F;
(d) Aluminium alloy: see special requirement "a" of packing instruction P200 (10) of 4.1.4.1;
(e) Composite material for compressed, liquefied, refrigerated liquefied gases and dissolved
gases;
(f) Synthetic materials for refrigerated liquefied gases; and
(g) Glass for the refrigerated liquefied gases of classification code 3A other than UN No. 2187
carbon dioxide, refrigerated, liquid or mixtures thereof, and gases of classification code 3O.

 

Service equipment

(Reserved)

Metal cylinders, tubes, pressure drums and bundles of cylinders

At the test pressure, the stress in the metal at the most severely stressed point of the pressure
receptacle shall not exceed 77% of the guaranteed minimum yield stress (Re).
"Yield stress" means the stress at which a permanent elongation of 2 per thousand (i.e. 0.2%) or, for
austenitic steels, 1% of the gauge length on the test-piece, has been produced.
NOTE: In the case of sheet-metal the axis of the tensile test-piece shall be at right angles to the
direction of rolling. The permanent elongation at fracture, shall be measured on a test-piece of
circular cross-section in which the gauge length "l" is equal to five times the diameter "d" (l = 5d); if
test pieces of rectangular cross-section are used, the gauge length "l" shall be calculated by the
formula:
where F0 indicates the initial cross-sectional area of the test-piece.
Pressure receptacles and their closures shall be made of suitable materials which shall be resistant to
brittle fracture and to stress corrosion cracking between –20 °C and +50 °C.
Welds shall be skilfully made and shall afford the fullest safety.

 

Additional provisions relating to aluminium-alloy pressure receptacles for compressed gases, liquefied gases, dissolved gases and non pressurized gases subject to special requirements (gas samples) as well as articles containing gas under pressure other than aerosol dispensers and small receptacles containing gas (gas cartridges)

The materials of aluminium-alloy pressure receptacles which are to be accepted shall satisfy the
following requirements:
 
 
 

A

B

C

D

Tensile strength,

Rm, in MPa (= N/mm2)

49 to 186

196 to 372

196 to 372

343 to 490

Yield stress, Re, in MPa (= N/mm2) (permanent

set  = 0,2%)

10 to 167

59 to 314

137 to 334

206 to 412

Permanent elongation at fracture (l = 5d), in %

12 to 40

12 to 30

12 to 30

11 to 16

Bend test (diameter of former d = n  e, where e is the thickness of the test piece)

n = 5 (Rm  98)

n = 6 (Rm > 98)

n = 6 (Rm  325)

n = 7 (Rm > 325)

n = 6 (Rm  325)

n = 7 (Rm > 325)

n = 7 (Rm  392)

n = 8 (Rm > 392)

Aluminium Association Series Number a

1 000

5 000

6 000

2 000

a See "Aluminium Standards and Data", Fifth edition, January 1976, published by the Aluminium Association,
750 Third Avenue, New York.
 
The actual properties will depend on the composition of the alloy concerned and on the final treatment
of the pressure receptacle, but whatever alloy is used the thickness of the pressure receptacle shall be
calculated by one of the following formulae:

where
e = minimum thickness of pressure receptacle wall, in mm
PMPa = test pressure, in MPa
Pbar = test pressure, in bar
D = nominal external diameter of the pressure receptacle, in mm and
Re = guaranteed minimum proof stress with 0.2% proof stress, in MPa (= N/mm2)
In addition, the value of the minimum guaranteed proof stress (Re) introduced into the formula is in
no case to be greater than 0.85 times the guaranteed minimum tensile strength (Rm), whatever the
type of alloy used.
NOTE 1: The above characteristics are based on previous experience with the following
materials used for pressure receptacles:
Column A: Aluminium, unalloyed, 99.5% pure;
Column B: Alloys of aluminium and magnesium;
Column C: Alloys of aluminium, silicon and magnesium, such as ISO/R209-Al-Si-Mg
(Aluminium Association 6351);
Column D: Alloys of aluminium, copper and magnesium.
NOTE 2: The permanent elongation at fracture is measured by means of test-pieces of circular
cross-section in which the gauge length "l" is equal to five times the diameter "d" (l = 5d); if
test-pieces of rectangular section are used the gauge length shall be calculated by the formula:
where Fo is the initial cross-section area of the test-piece.
NOTE 3: (a) The bend test (see diagram) shall be carried out on specimens obtained by
cutting into two equal parts of width 3e, but in no case less than 25 mm, an
annular section of a cylinder. The specimens shall not be machined elsewhere
than on the edges;
(b) The bend test shall be carried out between a mandrel of diameter (d) and two
circular supports separated by a distance of (d + 3e). During the test the inner
faces shall be separated by a distance not greater than the diameter of the
mandrel;
(c) The specimen shall not exhibit cracks when it has been bent inwards around the
mandrel until the inner faces are separated by a distance not greater than the
diameter of the mandrel;
(d) The ratio (n) between the diameter of the mandrel and the thickness of the
specimen shall conform to the values given in the table.

A lower minimum elongation value is acceptable on condition that an additional test approved by the
competent authority of the country in which the pressure receptacles are made proves that safety of
carriage is ensured to the same extent as in the case of pressure receptacles constructed to comply with
the characteristics given in the table in 6.2.5.4.1 (see also EN 1975:1999 + A1:2003).
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