Inspections and tests

Shells and their equipment shall either together or separately undergo an initial inspection before
being put into service. This inspection shall include:
- a check of conformity to the approved type;
- a check of the design characteristics9
- an examination of the internal and external conditions;
- a hydraulic pressure test10 at the test pressure indicated on the plate prescribed in 6.8.2.5.1; and
- a leakproofness test and a check of satisfactory operation of the equipment.
Except in the case of Class 2, the test pressure for the hydraulic pressure test depends on the
calculation pressure and shall be at least equal to the pressure indicated below:
 

Calculation pressure (bar)

Test pressure (bar)

11

11

1,5

1,5

2,65

2,65

4

4

10

4

15

4

21

10 (4 12)

 
The minimum test pressures for Class 2 are given in the table of gases and gas mixtures in 4.3.3.2.5.
The hydraulic pressure test shall be carried out on the shell as a whole and separately on each
compartment of compartmented shells.
 
The test shall be carried out on each
compartment at a pressure at least equal to:
– 1.3 times the maximum working
pressure; or
– 1.3 times the static pressure of the
substance to be carried but not less than
1.3 times the static pressure of water
with a minimum of 20 kPa (0.2 bar) for
gravity-discharge tanks according to
6.8.2.1.14 (a).
                                                                  
 
The hydraulic pressure test shall be carried out before the installation of a thermal insulation as may
be necessary.
If the shells and their equipment are tested separately, they shall be jointly subjected to a
leakproofness test after assembly in accordance with 6.8.2.4.3.
The leakproofness test shall be carried out separately on each compartment of compartmented shells.
 

Shells and their equipment shall undergo periodic inspections no later than every

six years. five years.
These periodic inspections shall include:
 
9 The check of the design characteristics shall also include, for shells requiring a test pressure of 1 MPa (10 bar)
or higher, the taking of weld test-pieces (work samples) in accordance with 6.8.2.1.23 and the tests prescribed in 6.8.5.
10 In special cases and with the agreement of the expert approved by the competent authority, the hydraulic
pressure test may be replaced by a pressure test using another liquid or gas, where such an operation does not present
any danger.
11 G = minimum calculation pressure according to the general requirements of 6.8.2.1.14 (see 4.3.4.1).
12 Minimum test pressure for UN No. 1744 bromine or UN No. 1744 bromine solution.
 
- An external and internal examination;
- A leakproofness test in accordance with 6.8.2.4.3 of the shell with its equipment and check of the
satisfactory operation of all the equipment;
- As a general rule, a hydraulic pressure test10 (for the test pressure for the shells and compartments
if applicable, see 6.8.2.4.1).
Sheathing for thermal or other insulation shall be removed only to the extent required for reliable
appraisal of the characteristics of the shell.
In the case of tanks intended for the carriage of powdery or granular substances, and with the
agreement of the expert approved by the competent authority, the periodic hydraulic pressure tests
may be omitted and replaced by leakproofness tests in accordance with 6.8.2.4.3, at an effective
internal pressure at least equal to the maximum working pressure.

 

Shells and their equipment shall undergo intermediate inspections at least every

three years two and a half years
 
after the initial inspection and each periodic inspection. These intermediate inspections may be
performed within three months before or after the specified date.
However, the intermediate inspection may be performed at any time before the specified date.
If an intermediate inspection is performed more than three months before the due date, another
intermediate inspection shall be performed at the latest
 
three years               two and a half years after this date.
These intermediate inspections shall include a leakproofness test of the shell with its equipment and
check of the satisfactory operation of all the equipment. For this purpose the tank shall be subjected to
an effective internal pressure at least equal to the maximum working pressure. For tanks intended for
the carriage of liquids or solids in the granular or powdery state, when a gas is used for the
leakproofness test it shall be carried out at a pressure at least equal to 25% of the maximum working
pressure. In all cases, it shall not be less than 20 kPa (0.2 bar) (gauge pressure).
For tanks equipped with breather devices and a safety device to prevent the contents spilling out if the
tank overturns, the leakproofness test shall be carried out at a pressure at least equal to the static
pressure of the densest substance to be carried, the static pressure of water or 20 kPa (0.2 bar)
whichever is the highest.
The leakproofness test shall be carried out separately on each compartment of compartmented shells.

When the safety of the tank or of its equipment may have been impaired as a result of repairs,
alterations or accident, an exceptional check shall be carried out. If an exceptional check fulfilling the
requirements of 6.8.2.4.2 has been performed, then the exceptional check may be considered to be a
periodic inspection. If an exceptional check fulfilling the requirements of 6.8.2.4.3 has been
performed then the exceptional check may be considered to be an intermediate inspection.

The tests, inspections and checks in accordance with 6.8.2.4.1 to 6.8.2.4.4 shall be carried out by the
expert approved by the competent authority. Certificates shall be issued showing the results of these
operations, even in the case of negative results. These certificates shall refer to the list of the
substances permitted for carriage in this tank or to the tank code and the alphanumeric codes of
special provisions in accordance with 6.8.2.3.
A copy of these certificates shall be attached to the tank record of each tank, battery-vehicle or MEGC
tested (see 4.3.2.1.7).
 
10 In special cases and with the agreement of the expert approved by the competent authority, the hydraulic
pressure test may be replaced by a pressure test using another liquid or gas, where such an operation does not present
any danger.

Marking

Every tank shall be fitted with a corrosion-resistant metal plate permanently attached to the tank in a
place readily accessible for inspection. The following particulars at least shall be marked on the plate
by stamping or by any other similar method. These particulars may be engraved directly on the walls
of the shell itself, if the walls are so reinforced that the strength of the shell is not impaired13:
- approval number;
- manufacturer’s name or mark;
- manufacturer’s serial number;
- year of manufacture;
- test pressure (gauge pressure);
- external design pressure (see 6.8.2.1.7);
- capacity of the shell – in the case of multiple-compartment shells, the capacity of each
compartment –, followed by the symbol "S" when the shells or the compartments of more than
7 500 litres are divided by surge plates into sections of not more than 7 500 litres capacity;
- design temperature (only if above +50 ºC or below -20 ºC);
- date and type of the most recent test: "month, year" followed by a "P" when the test is the
initial test or a periodic test in accordance with 6.8.2.4.1 and 6.8.2.4.2, or "month, year"
followed by an "L" when the test is an intermediate leakproofness test in accordance with
6.8.2.4.3;
- stamp of the expert who carried out the tests;
- material of the shell and reference to materials standards, if available and, where appropriate,
the protective lining;
 
- test pressure on the shell as a whole and
test pressure by compartment in MPa or
bar (gauge pressure) where the pressure by
compartment is less than the pressure on
the shell.
                                                                 
In addition, the maximum working pressure allowed shall be inscribed on pressure-filled or
pressure-discharge tanks.
13 Add the units of measurement after the numerical values.

The following particulars shall be inscribed on the
tank-vehicle (on the tank itself or on plates)13:
- name of owner or operator;
- unladen mass of the tank-vehicle; and
- maximum permissible mass of the tankvehicle.
The following particulars shall be inscribed on a
demountable tank (on the tank itself or on
plates)13:
- name of owner or operator;
- "demountable tank";
- tare of the tank;
- maximum permissible gross mass of the tank;
- for the substances according to 4.3.4.1.3, the
proper shipping name of the substance(s)
accepted for carriage;
- tank code according to 4.3.4.1.1; and
- for substances other than those according to
4.3.4.1.3, the alphanumeric codes of all special
provisions TC and TE which are shown in column
(13) of Table A of Chapter 3.2 for the substances
to be carried in the tank.
The following particulars shall be inscribed on
the tank-container (on the tank itself or on
plates)13:
- names of owner and of operator;
- capacity of the shell;
- tare;
- maximum permissible gross mass;
- for the substances according to 4.3.4.1.3, the
proper shipping name of the substance(s)
accepted for carriage;
- tank code according to 4.3.4.1.1; and
- for substances other than those according to
4.3.4.1.3, the alphanumeric codes of all
special provisions TC and TE which are
shown in column (13) of Table A of Chapter
3.2 for the substances to be carried in the
tank.

 

Requirements for tanks which are 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 and construction

Type approval certificates shall be issued in accordance with 1.8.7 or 6.8.2.3. 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 6.8 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 or 6.8.2.3.3; 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 6.8.2.7 and 6.8.3.7.
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 of tanks

EN 14025:2003 +

AC:2005

Tanks for the transport of dangerous goods –

Metallic pressure tanks – Design and construction

6.8.2.1

Between 1

January 2005 and

30 June 2009

 

EN 14025:2008

Tanks for the transport of dangerous goods –

Metallic pressure tanks – Design and construction

6.8.2.1 and 6.8.3.1

Between 1 July

2009 and

31 December

2016

 

EN 14025:2013

Tanks for the transport of dangerous goods –

Metallic pressure tanks – Design and construction

6.8.2.1 and 6.8.3.1

Between 1

January 2015 and

31 December

2018

 

EN 14025:2013+

A1:2016 (except Annex B)

Tanks for the transport of dangerous goods –

Metallic pressure tanks – Design and construction

6.8.2.1 and 6.8.3.1

Until further notice

 

EN 13094:2004

Tanks for the transport of dangerous goods –

Metallic tanks with a working pressure not exceeding 0.5 bar – Design and construction

6.8.2.1

Between 1

January 2005 and

31 December

2009

 

EN 13094:2008 +

AC:2008

Tanks for the transport of dangerous goods –

Metallic tanks with a working pressure not exceeding 0.5 bar – Design and construction

6.8.2.1

Between 1

January 2010 and

31 December

2018

 

EN 13094:2015

Tanks for the transport of dangerous goods –

Metallic tanks with a working pressure not exceeding 0.5 bar – Design and construction

6.8.2.1

Until further

notice

 

EN 12493:2001

(except Annex C)

Welded steel tanks for liquefied petroleum

gas (LPG) – Road tankers – Design and manufacture

NOTE: Road tankers is to be understood in the meaning of "fixed tanks" and "demountable tanks" as per ADR.

6.8.2.1 (with the

exception of 6.8.2.1.17);

6.8.2.4.1 (with the exclusion of the leakproofness test); 6.8.2.5.1, 6.8.3.1 and 6.8.3.5.1

 

Between

1 January 2005

and 31 December

2010

 

31 December 2012

EN 12493:2008

(except Annex C)

LPG equipment and accessories - Welded

steel tanks for liquefied petroleum gas (LPG)

– Road tankers – Design and manufacture

NOTE: Road tankers is to be understood in the meaning of "fixed tanks" and "demountable tanks" as per ADR.

6.8.2.1 (with the

exception of 6.8.2.1.17), 6.8.2.5,

6.8.3.1, 6.8.3.5,

6.8.5.1 to 6.8.5.3

 

Between

1 January 2010

and 31 December

2013

 

31 December 2014

EN 12493:2008 +

A1:2012 (except Annex C)

LPG equipment and accessories –Welded

steel tanks for liquefied petroleum gas (LPG)

– Road tankers – Design and manufacture

NOTE: Road tankers is to be understood in the meaning of "fixed tanks" and "demountable tanks" as per ADR.

6.8.2.1 (with the

exception of 6.8.2.1.17), 6.8.2.5,

6.8.3.1, 6.8.3.5,

6.8.5.1 to 6.8.5.3

Until 31

December 2013

31 December 2015

EN 12493:2013

(except Annex C)

LPG equipment and accessories – Welded

steel tanks for liquefied petroleum gas (LPG)

– Road tankers – Design and manufacture

NOTE: Road tankers is to be understood in the meaning of "fixed tanks" and "demountable tanks" as per ADR.

6.8.2.1, 6.8.2.5,

6.8.3.1, 6.8.3.5,

6.8.5.1 to 6.8.5.3

Between 1

January 2015 and

31 December

2017

31 December 2018

EN 12493:2013 +

A1:2014 +

AC:2015 (except Annex C)

LPG equipment and accessories – Welded

steel tanks for liquefied petroleum gas (LPG)

– Road tankers – Design and manufacture

NOTE: Road tankers is to be understood in the meaning of “fixed tanks” and “demountable tanks” as per ADR.

6.8.2.1, 6.8.2.5,

6.8.3.1, 6.8.3.5,

6.8.5.1 to 6.8.5.3

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 13530-2:2002

Cryogenic vessels – Large transportable

vacuum insulated vessels – Part 2: Design, fabrication, inspection and testing

6.8.2.1 (with the

exception of 6.8.2.1.17), 6.8.2.4,

6.8.3.1 and 6.8.3.4

Between

1 January 2005

and 30 June 2007

 

EN 13530-2:2002 +

A1:2004

Cryogenic vessels – Large transportable

vacuum insulated vessels – Part 2: Design, fabrication, inspection and testing

NOTE: Standard EN 1252-1:1998 referenced in this standard is also applicable to tanks for the carriage of UN No. 1972 (METHANE, REFRIGERATED LIQUID or NATURAL GAS, REFRIGERATED LIQUID).

6.8.2.1 (with the

exception of 6.8.2.1.17), 6.8.2.4,

6.8.3.1 and 6.8.3.4

 

Until further notice

 

EN 14398-2:2003

(except Table 1)

Cryogenic vessels - Large transportable non-

vacuum insulated vessels - Part 2: Design, fabrication, inspection and testing

NOTE: This standard shall not be used for those gases which are carried at temperatures below -100 ºC.

6.8.2.1 (with the

exception of 6.8.2.1.17,

6.8.2.1.19 and 6.8.2.1.20), 6.8.2.4,

6.8.3.1 and 6.8.3.4

 

Between

1 January 2005

and 31 December

2016

 

 

EN 14398-2:2003 + A2:2008

Cryogenic vessels – Large transportable non- vacuum insulated vessels – Part 2: Design, fabrication, inspection and testing

NOTE: This standard shall not be used for those gases which are carried at temperatures below -100 ºC.

6.8.2.1 (with the exception of 6.8.2.1.17,

6.8.2.1.19 and 6.8.2.1.20), 6.8.2.4,

6.8.3.1 and 6.8.3.4

 

Until further notice

 

For equipment

EN 14432:2006

Tanks for the transport of dangerous goods –

Tank equipment for the transport of liquid chemicals – Product discharge and air inlet valves

6.8.2.2.1

Between 1

January 2009 and

31 December

2018

 

EN 14432:2014

Tanks for the transport of dangerous goods – Tank equipment for the transport of liquid chemicals and liquefied gases – Product discharge and air inlet valves

NOTE: This standard may also be used for tanks with a maximum working pressure not exceeding 0.5 bar.

6.8.2.2.1, 6.8.2.2.2

and 6.8.2.3.1

Until further

notice

 

EN 14433:2006

Tanks for the transport of dangerous goods –

Tank equipment for the transport of liquid chemicals – Foot valves

6.8.2.2.1

Between

1 January 2009

and 31 December

2018

 

EN 14433:2014

Tanks for the transport of dangerous goods – Tank equipment for the transport of liquid chemicals and liquefied gases – Foot valves

NOTE: This standard may also be used for tanks with a maximum working pressure not exceeding 0.5 bar.

6.8.2.2.1, 6.8.2.2.2

and 6.8.2.3.1

Until further notice

 

EN 12252:2000

Equipping of LPG road tankers

NOTE: Road tankers is to be understood in the meaning of "fixed tanks" and "demountable tanks" as per ADR.

6.8.3.2 (with the

exception of 6.8.3.2.3)

Between

1 January 2005

and 31 December

2010

 

31 December 2012

EN 12252:2005 +

A1:2008

LPG equipment and accessories – Equipping

of LPG road tankers

NOTE: Road tankers is to be understood in the meaning of "fixed tanks" and "demountable tanks" as per ADR.

6.8.3.2 (with the

exception of 6.8.3.2.3) and

6.8.3.4.9

Between 1

January 2011 and

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 12252:2014

LPG Equipment and accessories – Equipping

of LPG road tankers

NOTE: Road tanker is to be understood in the meaning of “fixed tanks” and “demountable tanks” as per ADR.

6.8.3.2 and

6.8.3.4.9

Until further

notice

 

EN 14129:2014

LPG Equipment and accessories – Pressure

relief valves for LPG pressure vessels

6.8.2.1.1 and

6.8.3.2.9

Until further

notice

 

EN 1626:2008

(except valve category B)

Cryogenic vessels – Valves for cryogenic service

 

6.8.2.4 and 6.8.3.4

Until further notice

 

 

EN 13648-1:2008

Cryogenic vessels – Safety devices for

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

6.8.2.4, 6.8.3.2.12

and 6.8.3.4

Until further

notice

 

EN 13082:2001

Tanks for transport of dangerous goods –

Service equipment for tanks – Vapour transfer valve

6.8.2.2 and

6.8.2.4.1

Between

1 January 2005

and 30 June 2013

 

31 December 2014

EN 13082:2008

+ A1:2012

Tanks for transport of dangerous goods –

Service equipment for tanks – Vapour transfer valve

6.8.2.2 and

6.8.2.4.1

Until further

notice

 

EN 13308:2002

Tanks for transport of dangerous goods –

Service equipment for tanks – Non pressure balanced footvalve

6.8.2.2 and

6.8.2.4.1

Until further notice

 

EN 13314:2002

Tanks for transport of dangerous goods –

Service equipment for tanks – Fill hole cover

6.8.2.2 and

6.8.2.4.1

Until further notice

 

EN 13316:2002

Tanks for transport of dangerous goods –

Service equipment for tanks –Pressure balanced footvalve

6.8.2.2 and

6.8.2.4.1

Until further notice

 

EN 13317:2002

(except for the figure and table B.2 in Annex B) (The material shall meet the requirements of standard

EN 13094:2004,

Clause 5.2)

Tanks for transport of dangerous goods –

Service equipment for tanks – Manhole cover assembly

6.8.2.2 and

6.8.2.4.1

 

Between

1 January 2005

and 31 December

2010

 

31 December 2012

EN 13317:2002 +

A1:2006

Tanks for transport of dangerous goods –

Service equipment for tanks – Manhole cover assembly

6.8.2.2 and 6.8.2.4.1

Until further notice

 

EN 14595:2005

Tanks for transport of dangerous goods - Service equipment for tanks - Pressure and vacuum breather vent

6.8.2.2 and 6.8.2.4.1

Until further notice

 

EN 16257:2012

Tanks for the transport of dangerous goods – Service equipment – Footvalve sizes other than 100 mm dia (nom)

6.8.2.2.1 and 6.8.2.2.2

Until further notice

 

EN 13175:2014

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

6.8.2.1.1, 6.8.2.2,

6.8.2.4.1 and 6.8.3.2.3

Until further notice

 

Inspection and test

The standards referenced in the table below shall be applied for the inspection and test of tanks as
indicated in column (4) to meet the requirements of Chapter 6.8 referred to in column (3). The
standards shall be applied in accordance with 1.1.5.
The use of a referenced standard is mandatory.
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

(1)

(2)

(3)

(4)

EN 12972:2007

Tanks for transport of dangerous goods – Testing, inspection and marking of metallic tanks

6.8.2.4

6.8.3.4

Until further notice

EN 14334:2014

LPG equipment and accessories – Inspection and testing of LPG road tankers

6.8.2.4 (except 6.8.2.4.1), 6.8.3.4.2 and 6.8.3.4.9

Until further notice

 

Requirements for tanks which are not designed, constructed and tested according to referenced standards

To reflect scientific and technical progress or where no standard is referenced in 6.8.2.6 or to deal
with specific aspects not addressed in a standard referenced in 6.8.2.6, the competent authority may
recognize the use of a technical code providing the same level of safety. Tanks shall, however, comply
with the minimum requirements of 6.8.2.
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 UNECE secretariat.
For testing, inspection and marking, the applicable standard referenced in 6.8.2.6 may also be used.

Special requirements applicable to Class 2

Construction of shells

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