CEN/TR 15120:2013

SLOVENSKI STANDARD
01-december-2013
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SIST-TP CEN/TR 15120:2005
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Tanks for transport of dangerous goods - Guidance and recommendations for loading,
transport and unloading
Tanks für die Beförderung gefährlicher Güter - Leitlinien und Empfehlungen für
Ausfüllung, Beförderung und Entleerung
Citernes destinées au transport de matières dangereuses - Lignes directrices et
recommandations pour le chargement, le transport et le déchargement
Ta slovenski standard je istoveten z: CEN/TR 15120:2013
ICS:
13.300 Varstvo pred nevarnimi Protection against dangerous
izdelki goods
23.020.20 Posode in vsebniki, montirani Vessels and containers
na vozila mounted on vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN/TR 15120
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
May 2013
ICS 13.300; 23.020.20 Supersedes CEN/TR 15120:2005
English Version
Tanks for transport of dangerous goods - Guidance and
recommendations for loading, transport and unloading
Citernes destinées au transport de matières dangereuses - Tanks für die Beförderung gefährlicher Güter - Leitlinien
Lignes directrices et recommandations pour le chargement, und Empfehlungen für Ausfüllung, Beförderung und
le transport et le déchargement Entladung

This Technical Report was approved by CEN on 28 January 2013. It has been drawn up by the Technical Committee CEN/TC 296.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15120:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Bottom loading gantry function and operation .6
5 Tank truck function and equipment .8
6 Electrical equipment . 14
7 Gantry — tank truck system interfaces . 14
8 Conditions of operation . 14
9 Safe loading pass . 14
10 Discharge . 15
Annex A (normative) Tank connection envelope . 18
Annex B (normative) Vapour flow performance test . 22
Annex C (normative) Information plate . 28
Annex D (normative) Overfill prevention sensor setting . 30
Annex E (informative) Illustration of when an explosive atmosphere might be present or might
arise during loading operations . 32
Annex F (informative) Safe loading pass scheme . 34
Bibliography . 38

Foreword
This document (CEN/TR 15120:2013) has been prepared by Technical Committee CEN/TC 296 “Tanks for
the transport of dangerous goods”, the secretariat of which is held by AFNOR.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TR 15120:2005.
The main changes compared to the previous edition are:
 additional statement concerning spray deflectors added to 5.2.1;
 additional statement concerning pressure balanced footvalve pressure relieving added to 5.3.3;
 new section 5.3.4 concerning cap for loading and unloading adaptor added;
 additional statement clarifying where 5.5 kPa pressure shall be measured in 5.4.1;
 reference to EN12971 removed from 5.4.1;
 flame arrester specification updated to meet latest standards in 5.4.5;
 additional statement concerning positioning of an overfill probe added to 5.5.1;
 Annex A – statement concerning height of loading adaptors changed to reflect Directive 94/63/EC;
 Annex A – additional statement defining minimum adaptor spacing added.

1 Scope
This Technical Report provides guidance and recommendations to enable the transfer of product and vapour
between the loading gantry, the tank truck and the service station.
The European Parliament and Council Directive 94/63/EC (VOC Directive) requires operators to ensure that
petroleum vapours are not emitted into the atmosphere during loading and unloading. The recommendations
and guidance given in this document are intended to assist users in meeting the requirements of this
Directive.
This Technical Report acknowledges that, for climatic and logistical reasons, alternative technical solutions
are commonly used in the Arctic Region.
This Technical Report gives guidance and recommendations for loading at terminals and discharge at service
stations or customer premises of tank trucks transporting dangerous substances of Class 3 of ADR -
European Agreement concerning the International Carriage of Dangerous Goods by Road – (flammable
liquids) which have a vapour pressure not exceeding 110 kPa at 50 °C and petrol, and which have no
sub-classification as toxic or corrosive.
2 Normative references
The following documents, in whole in part, are normatively referenced in this document and are indispensable
for its application. For dated references, only the edition cited applies. For undated references, the latest
edition of the referenced document (including any amendments) applies.
EN 12972, Tanks for transport of dangerous goods — Testing, inspection and marking of metallic tanks
EN 14564:2013, Tanks for transport of dangerous goods — Terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14564:2013 and the following apply.
3.1
arctic region
region comprising Finland, Norway and Sweden
3.2
authorisation to load
authorisation of a tank truck loader by a terminal operator to load the required goods into the tank truck
following the verification of his or her competence including any required certification and its associated
validity
3.3
driver
person in charge of the tank truck, having responsibility for driving and who might or might not also be
responsible for its loading and/or discharge
3.4
overfill
filling of a tank truck or one or more of its compartments to the extent that the total volume loaded into a
compartment exceeds the maximum permitted volume
3.5
overfill prevention system
gantry-mounted controller connected to sensors mounted at a pre-determined high level in a tank truck that
will, in the event that a sensor detects liquid, signal the gantry control valve to cease loading flow in order to
prevent the overfilling of the tank truck
3.6
overloading
loading of a tank truck such that its total weight exceeds that permitted by local road regulations, or the load
imposed by one or more axles exceeds the local maximum authorised weight for that axle
3.7
tank truck
truck which conforms to the definition of either tank-vehicle, demountable tank, tank container or tank swap
body given in EN 14564
3.8
safe loading pass
permit issued to a tank truck upon verification by inspection that its design and maintenance satisfy safety and
gantry compatibility requirements
3.9
tank truck loader
person responsible for loading the tank truck in accordance with the load plan
Note 1 to entry: The tank truck loader is sometimes called the filler.
3.10
tank truck operator
legal entity/company that provides funds, tank trucks and personnel in order to transport dangerous goods as
described in Clause 1
3.11
terminal operator
person or company in charge of terminal operations, including the responsibility for storage, handling, loading
of dangerous goods and providing the information with regard to the specifications of the product to be loaded
3.12
maximum permitted volume
maximum volume of the compartment, or in total
Note 1 to entry: Maximum permitted volume means the same as the term "degree of filling", which is used in the
European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR).
3.13
frustrated delivery
delivery where the driver is unable to unload the intended volume
4 Bottom loading gantry function and operation
4.1 Gantry loading equipment
4.1.1 General
Arrangements to permit loading of tank trucks, equipped according to this document, should be available on at
least one gantry at each arctic loading facility.
4.1.2 Overfill prevention system
Loading gantries should have meters to determine the volume loaded into a tank truck compartment. The
primary overfill prevention system should comprise the pre-setting of the gantry loading meter by the tank
truck loader for each tank truck compartment separately before it is loaded.
4.1.3 Level detection — Secondary shut off (overfill prevention) system
The gantry-based components of the overfill prevention system should conform to EN 13922. The plug should
be able to connect with the connector within the tank connection envelope as described in Annex A. It should
be considered as a secondary overfill prevention system in the event that the primary volume limiting system
(meter pre-set) does not operate.
NOTE In the arctic region, 2-wire thermistor sensors with a positive temperature coefficient conforming to national
standards and individual tank truck mounted shut-off devices are commonly used.
4.1.4 Coupler for bottom loading
Couplers for bottom loading should be operationally compatible with adaptors for bottom loading and should
be able to connect with them within the tank connection envelope as described in Annex A.
Where tank trucks fitted with valves which can be closed against product flow are loaded, a surge pressure
of 2 500 kPa should not compromise the integrity or functions of the coupler.
In order to prevent the accumulation of any electrostatic charge, there should be electrical resistance of less
than 10 ohms across a metallic coupler and adaptor, and less than 10 ohms in other cases, when connected.
NOTE In the arctic region, couplers for bottom loading with the same functionality but able to connect with an adaptor
for bottom loading with a reduced diameter are commonly used.
4.1.5 Vapour collection system
The vapour collection coupler should conform to EN 13081 and should be able to connect with the vapour
collection adaptor within the tank connection envelope as described in Annex A.
NOTE In the arctic region, a vapour collection coupler with the same functionality but with a reduced diameter are
commonly used.
4.1.6 Drive away restriction
A system to prevent unauthorised movement of a tank truck may be provided.
4.2 Loading conditions
4.2.1 Maximum loading rates per loading arm
The maximum loading rate per loading arm should not exceed the values given in Table 1.
It is recommended that the tank truck be suitable for high speed loading (see 5.2.1).
NOTE Table 1 has been adapted from CLC/TR 50404 and gives the flow rates for diameters of pipe used in loading
systems, including tank truck pipework, such that the accumulation of the electrostatic charge on the surface of the liquid
does not exceed acceptable limits. The reduced values given in brackets apply to non high speed loading tank trucks.
Maximum loading rates (vd < 0,5) are given for design purposes; loading rates may be reduced for safety
reasons depending upon specific circumstances.
Table 1 — Conductivity
Conductivity
pS/m
Known > 50 Known > 10 Known < 10, or unknown
Product class
max. loading rate max. loading rate max. loading rate
and sulphur
content
l/min l/min l/min
a
[S] mg/kg
c b
DN v × d DN DN v × d DN DN
v × d DN
80 mm 100 mm 80 mm 100 mm 80 mm 100 mm
Gasoline (any S 1 900 2 400 1 900 2 400 1 900 2 400
< 0,5 < 0,5 < 0,5
d
level)
...