1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationPD CEN/TR 15120:2013Tanks for transport ofdangerous goods Guidanceand recommendations forloading, transport andunloadingPD CEN/TR 15120:2013 PUBLISHED DOCUMENTNational forewordTh
2、is Published Document is the UK implementation of CEN/TR 15120:2013. It supersedes PD CEN/TR 15120:2005 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee AUE/18, Tanks for the transport of dangerous goods.A list of organizations represented on this commi
3、ttee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013ISBN 978 0 580 80025 2 ICS 13.30
4、0; 23.020.20 Compliance with a British Standard cannot confer immunity from legal obligations.This Published Document was published under the authority of the Standards Policy and Strategy Committee on 30 June 2013.Amendments issued since publicationDate T e x t a f f e c t e dTECHNICAL REPORT RAPPO
5、RT TECHNIQUE TECHNISCHER BERICHT CEN/TR 15120 May 2013 ICS 13.300; 23.020.20 Supersedes CEN/TR 15120:2005English Version Tanks for transport of dangerous goods - Guidance and recommendations for loading, transport and unloading Citernes destines au transport de matires dangereuses -Lignes directrice
6、s et recommandations pour le chargement, le transport et le dchargement Tanks fr die Befrderung gefhrlicher Gter - Leitlinien und Empfehlungen fr Ausfllung, Befrderung und Entladung This Technical Report was approved by CEN on 28 January 2013. It has been drawn up by the Technical Committee CEN/TC 2
7、96. 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, Po
8、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any for
9、m and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 15120:2013: EPD CEN/TR 15120:2013CEN/TR 15120:2013 (E) 2 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 e
10、quipment .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 Anne
11、x 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 PD CEN/TR 15120:2013CEN/TR 15120:2013 (E) 3 Fore
12、word 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. CE
13、N 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 b
14、alanced 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 late
15、st 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. PD CEN/TR 15120:2013CEN/TR 15120
16、:2013 (E) 4 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 pe
17、troleum 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, alternat
18、ive 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
19、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
20、 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 o
21、f 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
22、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 fo
23、r 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 PD CEN/TR 15120:2013CEN/TR 15120:2013 (
24、E) 5 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
25、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, demoun
26、table 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
27、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
28、 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:
29、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 PD CEN/TR 15120:2013CEN/
30、TR 15120:2013 (E) 6 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 syst
31、em 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
32、 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 seconda
33、ry 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 co
34、mmonly 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
35、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
36、 than 106ohms 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 confo
37、rm 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
38、A system to prevent unauthorised movement of a tank truck may be provided. PD CEN/TR 15120:2013CEN/TR 15120:2013 (E) 7 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
39、 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
40、not exceed acceptable limits. The reduced values given in brackets apply to non high speed loading tank trucks. Maximum loading rates (vd 50 Known 10 Known 50 and all other fuels 0,8 m from one of the conductors or the tank shell; or c) have a nominal capacity 15 000 l. NOTE A chamber is the space c
41、reated in a compartment when that compartment is subdivided by baffles or surge plates into spaces of smaller capacity (as per CLC/TR 50404). A central conductor should be an electrically continuous metallic uninsulated cable, wire or tube, which has electrical continuity with the tank shell of 10 o
42、hms. If a cable or wire, the central conductor should: have a diameter 2 mm and 10 mm, or 50 mm; be fixed to the roof and to the floor of the compartment or chamber; and have sufficient strength to withstand flexing caused by loading and transport operations, including its end fittings and attachmen
43、ts. If a tube (which may be a dip, drain, service or vapour recovery tube), the central conductor should: have a diameter 50 mm; and be fixed to the roof of the compartment or chamber and continued to the floor or vice versa. A central conductor should not retain product. Any overfill or other probe
44、 in a compartment should be fitted 0,5 m from a compartment division, or a baffle, surge plate or central conductor. 5.3 Tank truck loading equipment 5.3.1 Tank contents determination Provision should be made for determining the empty or not-empty condition of each tank truck compartment prior to lo
45、ading. A plate, as shown in Annex C, should be fitted adjacent to the adaptor showing the maximum permissible filling volume of each compartment. PD CEN/TR 15120:2013CEN/TR 15120:2013 (E) 10 5.3.2 Adaptor for bottom loading and unloading The bottom loading adaptor should conform to EN 13083. If the
46、system is fitted with valves which can be closed against the loading flow, e.g. pressure balanced footvalves conforming to EN 13316, a surge pressure of 2 500 kPa should not compromise the integrity or functions of the adaptor/coupler. NOTE In the arctic region, bottom loading adaptors with the same
47、 functionality but with a reduced diameter are commonly used. The adaptors should be located as described in Annex A to allow the connection of couplers. 5.3.3 Footvalves Non-pressure balanced footvalves should conform to EN 13308. Pressure balanced footvalves should conform to EN 13316. Before the
48、footvalve in the tank compartment is opened, the vapour transfer valve should be open. The footvalve should be open before loading commences. The footvalve should be closed before the loading or discharge connections are broken. For pipe systems with pressure balanced footvalves, a pressure relievin
49、g device should be installed between the footvalve and loading/unloading adaptor to prevent over-pressurisation of the pipeline from thermal expansion of the liquid. 5.3.4 Cap for the bottom loading/unloading adaptor The drip cap fitted to the bottom loading/unloading adaptor should conform to EN16249. 5.4 Vapour collection system 5.4.1 General conditions In order to ensure that vapour is not emitted to atmosphere when the terminal vapour collection system generates a back-pressure of up to 5,5 kPa, care should be taken
