1994L0063 — EN — 20.11.2003 — 001.001 — 1
This document is meant purely as a documentation tool and the institutions do not assume any liability for its contents
►B EUROPEANPARLIAMENTANDCOUNCILDIRECTIVE94/63/EC
of20December 1994
onthecontrolofvolatile organiccompound(VOC)emissionsresultingfromthestorageofpetrol
anditsdistributionfromterminalstoservice stations
(OJ L 365, 31.12.1994, p. 24)
Amended by:
Official Journal
No page date
►M1Regulation (EC) No 1882/2003 of the European Parliament and of the
Council of 29 September 2003L 284 1 31.10.2003
▼B
EUROPEAN PARLIAMENTANDCOUNCILDIRECTIVE94/63/
EC
of20December 1994
on the control of volatile organic compound (VOC) emissions
resultingfromthestorageofpetrolanditsdistributionfromterm-
inalstoservice stations
THE EUROPEAN PARLIAMENT AND THE COUNCIL OF THE
EUROPEAN UNION,
Having regard to the Treaty establishing the European Community, and
in particular Article 100a thereof,
Having regard to the proposal from the Commission (1),
Having regard to the opinion of the Economic and Social
Committee (2),
Acting in accordance withth e procedure referred to in Article 189b of
the Treaty (3),
Whereas successive programmes of action of the European Commu-
nities on the protection of the environment (4) have stressed the
importance of preventing and reducing air pollution;
Whereas emissions of volatile organic compounds (VOCs) from petrol
and solvents in the Community would be in the order of 10 million
tonnes per year if no control measures were taken; whereas VOC emis-
sions contribute to the formation of photochemical oxidants such asozone, which in high concentrations can impair human health anddamage vegetation and materials; whereas some of the VOC emissionsfrom petrol are classified as toxic, carcinogenic or teratogenic;
Whereas on 2 April 1992 the Community signed the Protocol to the
1979 Convention on long range transboundary air pollution concerningthe control of emissions of volatile organic compounds (VOCs) or theirtransboundary fluxes, which provides for a considerable reduction ofthe VOC emissions;
Whereas a significant step in a strategy for an overall reduction of
VOC emissions in the Community was taken by Council Directive 91/441/EEC of 26 June 1991 amending Directive 70/220/EEC on theapproximation of the laws of the Member States relating to measuresto be taken against air pollution by emissions from motor vehicles (
5)
which aims at reducing by some 80 to 90 %, over 10 to 15 years,
VOC emissions from tail-pipe exhaust gases and evaporative emissions
from motor vehicles, representing some 40 % of the present emissionsof man-made VOCs to the atmosphere; whereas, at the time of adop-tion of that Directive, the Commission was requested to submit aproposal for a Directive on the measures to reduce evaporation losses
at every stage in the process of storage and distribution of motor fuels;
Whereas the VOC emissions from the system for storage and distribu-
tion of petrol represent some 500000 tonnes per year or some 5 % ofthe total emissions of man-made VOCs in the Community; whereasthese emissions, represent a significant contribution to air pollution
especially in urban areas;1994L0063 — EN — 20.11.2003 — 001.001 — 2
(1) OJ No C 227, 3. 9. 1992, p. 3 and OJ No C 270, 6. 10. 1993, p. 12.
(2) OJ No C 73, 15. 3. 1993, p. 6.
(3) Opinion of the European Parliament of 24 June 1994 (OJ No C 194, 19. 7.
1993, p. 325), Council common position of 4 October 1993 (not yet
published in the Official Journal) and Decision of the European Parliament
of 9 March1994 (OJ No C 91, 28. 3. 1994, p. 82). Confirmed on 2December 1994 (OJ No C 342, 20. 12. 1993, p. 15). Joint text of the Conci-
liation Committee of 8 November 1994.
(
4) OJ No C 112, 20. 12. 1973, p. 1, OJ No C 139, 13. 6. 1977, p. 1; OJ No C
46, 17. 2. 1983, p. 1 and OJ No C 328, 7. 12. 1987, p. 1.
(5) OJ No L 242, 30. 8. 1991, p. 1.
▼B
Whereas available technologies can ensure a considerable reduction of
the evaporative losses in the distribution system for petrol, not leastthrough the recovery of vapours which are displaced;
Whereas, on grounds of international standardization and of safety
during the loading of ships, standards must be drawn up at Interna-tional Maritime Organization level for vapour control and recoverysystems to apply to both loading installations and ships; whereas the
Community must therefore endeavour to ensure that the necessary
provisions are introduced into the Marpol Convention during thecurrent revision of Marpol due to be completed in 1996; whereas inthe event that the Marpol Convention is not so revised, the Community,after discussion withits major trading partners, sh ould propose appro-priate measures to apply to ships and port installations servicing ships;
1Whereas further action will be needed to reduce the vapour emissions
during refuelling operations at service stations, which at presentamount so some 200000 tonnes per year, thereby controlling allvapour emissions during the distribution of petrol;
Whereas, in order to avoid distortion of competition and in order to
ensure the operation of the internal market, it is necessary to harmonizecertain measures concerning the distribution of petrol on the basis of ahigh level of environmental protection;
Whereas account should nevertheless be taken of the advantages and
burdens which may result from action or the absence of action;
whereas it is therefore appropriate to provide for the possibility ofderogations and sometimes of exclusions in certain cases; whereascertain Member States should also be given the option of longerperiods in which to adapt in order to take account of any major envir-onmental measures of differing kinds which they may already have
adopted in this area or of the particular burden imposed by the
measures in this Directive owing to the structure of their networks;
Whereas Community action must take account of environmental condi-
tions in the various regions of the Community; whereas in thisconnection Member States must be able to uphold or impose more
stringent measures relating to the evaporative losses from fixed instal-
lations throughout their territory or in geographical areas where it isestablished that such measures are necessary for the protection ofhuman health or the environment because of special conditions;
Whereas the provisions of paragraph 1 of Articles 3, 4 and 6 of this
Directive apply without prejudice to Council Directive 83/189/EEC of
28 March1983 laying down a procedure for th e provision of informa-tion in the field of technical standards and regulations;
Whereas it is necessary to introduce harmonized specifications for the
equipment for bottom loading of road tankers in order to ensure the
possibility of free trade in petrol and equipment within the Community
and to ensure a high level of safety; whereas provision should be madefor standardizing such specifications and adapting them to technicalprogress;
Whereas a committee should be set up to assist the Commission in
adapting the Annexes to this Directive to technical progress,
HAVE ADOPTED THIS DIRECTIVE:
Article 1
Scope
This Directive shall apply to the operations, installations, vehicles and
vessels used for storage, loading and transport of petrol from one term-inal to another or from a terminal to a service station.1994L0063 — EN — 20.11.2003 — 001.001 — 3
1 OJ No L 109, 26. 4. 1983, p. 8. Directive as last amended by Commission
Decision 92/400/EEC (OJ No L 221, 6. 8. 1992, p. 55).
▼B
Article 2
Definitions
For the purpose of this Directive:
(a) ‘petrol’ shall mean any petroleum derivative, with or without addi-
tives, having a reid vapour pressure of 27,6 kilopascals or more,which is intended for use as a fuel for motor vehicles, except
liquefied petroleum gas (LPG);
(b) ‘vapours’ shall mean any gaseous compound which evaporates
from petrol;
(c) ‘storage installation’ shall mean any stationary tank at a terminal
used for the storage of petrol;
(d) ‘terminal’ shall mean any facility which is used for the storage and
loading of petrol onto road tankers, rail tankers, or vessels,including all storage installations on the site of the facility;
(e) ‘mobile container’ shall mean any tank, transported by road, rail or
waterways used for the transfer of petrol from one terminal to
another or from a terminal to a service station;
(f) ‘service station’ shall mean any installation where petrol is
dispensed to motor vehicle fuel tanks from stationary storagetanks;
(g) ‘existing’ petrol storage installations, loading installations, service
stations and mobile containers shall mean such installations,
service stations and mobile containers which were in operation
before the date referred to in Article 10 or for which an individualconstruction licence or operating licence, where required undernational legislation, was granted before the date referred to inArticle 10;
(h) ‘new’ in relation to petrol storage installations, loading installa-
tions, service stations and mobile containers shall mean such
installations, service stations and mobile containers which are not
covered by paragraph(g);
(i) ‘throughput’ shall mean the largest total annual quantity of petrol
loaded from a storage installation at a terminal or from a servicestation into mobile containers during the three preceding years;
(j) ‘vapour-recovery unit’ shall mean equipment for the recovery of
petrol from vapours including any buffer reservoir systems at a
terminal;
(k) ‘vessel’ shall mean an inland waterway vessel as defined in
Chapter 1 of Council Directive 82/714/EEC of 4 October 1982laying down technical requirements for inland waterwayvessels (
1);
(l) ‘target reference value’ shall mean the guideline given for the
overall assessment of the adequacy of technical measures in the
Annexes and is not a limit value against which the performance
of individual installations, terminals and service stations will bemeasured;
(m) ‘intermediate storage of vapours’ shall mean the intermediate
storage of vapours in a fixed roof tank at a terminal for latertransfer to and recovery at another terminal. The transfer ofvapours from one storage installation to another at a terminal shall
not be considered as intermediate storage of vapour within the
meaning of this Directive;
(n) ‘loading installation’ shall mean any facility at a terminal at which
petrol can be loaded onto mobile containers. Loading installationsfor road tankers comprise one or more ‘gantries’;
(o) ‘gantry’ shall mean any structure at a terminal at which petrol can
be loaded on to a single road tanker at any one time.1994L0063 — EN — 20.11.2003 — 001.001 — 4
(1) OJ No L 301, 28. 10. 1982, p. 1.
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Article 3
Storageinstallationsatterminals
1. Storage installations shall be designed and operated in accordance
with the technical provisions of Annex I.
These provisions are designed to reduce the total annual loss of petrol
resulting from loading and storage at eachstorage installation at term-
inals to below the target reference value of 0,01 weight by weight (w/
w) % of the throughput.
Member States may maintain or require more stringent measures
throughout their territory or in geographical areas where it is estab-
lished that such measures are necessary for the protection of humanhealth or the environment owing to specific conditions.
Member States may adopt technical measures for the reduction of
losses of petrol other than those set down in Annex I if such alternativemeasures are demonstrated to have at least the same efficiency.
Member States shall inform the other Member States and the Commis-
sion of any existing measures or of any special measures referred to inthis paragraph which they contemplate taking and of their grounds fortaking them.
2. The provisions of paragraph 1 shall apply:
(a) from the date referred to in Article 10 for new installations;
(b) three years from the date referred to in Article 10 for existing
installations if the throughput loaded at a terminal is greater than
50000 tonnes/year;
(c) six years from the date referred to in Article 10 for existing instal-
lations if the throughput loaded at a terminal is greater than 25000tonnes/year;
(d) nine years from the date referred to in Article 10 for all other
existing storage installations at terminals.
Article 4
Loadingandunloadingofmobilecontainersatterminals
1. Loading and unloading equipment shall be designed and operated
in accordance with the technical provisions of Annex II.
These provisions are designed to reduce the total annual loss of petrol
resulting from loading and unloading of mobile containers at terminalsto below the target reference value of 0,005 w/w % of the throughput.
Member States may maintain or require more stringent measures
throughout their territory or in geographical areas where it is estab-lished that such measures are necessary for the protection of humanhealth or the environment owing to specific conditions.
Member States may adopt technical measures for the reduction of
losses of petrol other than those set down in Annex II if such alterna-tive measures are demonstrated to have at least the same efficiency.
Member States shall inform the other Member States and the Commis-
sion of any existing measures or of any special measures referred to inthis paragraph which they contemplate taking and of their grounds fortaking them. The Commission shall verify the compatibility of these
measures with the provisions of the Treaty and those of this paragraph.
All terminals withloading facilities for road tankers sh all be equipped
with at least one gantry which meets the specifications for bottom-
loading equipment laid down in Annex IV. These specifications shall
be re-examined at regular intervals and, if appropriate, shall be revisedin accordance withth e procedure laid down in Article 8.
2. The provisions of paragraph 1 shall apply:
(a) from the date referred to in Article 10 for new terminals for
loading onto road tankers, rail tankers and/or vessels;1994L0063 — EN — 20.11.2003 — 001.001 — 5
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(b) three years from the date referred to in Article 10 for existing term-
inals for loading onto road tankers, rail tankers and/or vessels if thethroughput is greater than 150000 tonnes/year;
(c) six years from the date referred to in Article 10 for existing term-
inals for loading onto road tankers and rail tankers if thethroughput is greater than 25 000 tonnes/year;
(d) nine years from the date referred to in Article 10 for all other
existing loading installations at terminals for loading onto roadtankers and rail tankers.
3. Nine years after the date referred to in Article 10 the require-
ments for bottom-loading equipment set in Annex IV shall apply toall road tanker loading gantries at all terminals unless exempted underthe terms of paragraph 4.
4. By way of derogation, paragraphs 1 and 3 shall not apply:
(a) to existing terminals with a throughput of less than 10000 tonnes/
year and;
(b) to new terminals with a throughput of less than 5 000 tonnes/year
located in small remote islands.
Member States shall inform the Commission of terminals concerned by
such a derogation through the reporting arrangements referred to inArticle 9.
5. The Kingdom of Spain may grant a derogation of one year from
the time limit set down in paragraph 2 (b).
Article 5
Mobile containers
1. Mobile containers shall be designed and operated in accordance
withth e following requirements:
(a) mobile containers shall be designed and operated so that residual
vapours are retained in the container after unloading of petrol;
(b) mobile containers which supply petrol to service stations and term-
inals shall be designed and operated so as to accept and retainreturn vapours from the storage installations at the service stationsor terminals. For rail tankers this is only required if they supply
petrol to service stations or to terminals where intermediate storage
of vapours is used;
(c) except for release through the pressure relief valves, the vapours
mentioned in subparagraphs (a) and (b) shall be retained in the
mobile container until reloading takes place at a terminal.
If after the unloading of petrol the mobile container is subsequently
used for products other than petrol, in so far as vapour recovery or
intermediate storage of vapours is not possible, ventilation may be
permitted in a geographical area where emissions are unlikely tocontribute significantly to environmental or health problems;
(d) the Member States' competent authorities must ensure that road
tankers are regularly tested for vapour tightness and that vacuum/pressure valves on all mobile containers are periodically inspectedfor correct functioning.
2. The provisions of paragraph 1 shall apply:
(a) from the date referred to in Article 10 for new road tankers, rail
tankers and vessels;
(b) three years from the date referred to in Article 10 for existing rail
tankers and vessels if loaded at a terminal to which the requirement
of Article 4 (1) applies;
(c) for existing road tankers when retrofitted for bottom loading in
accordance withth e specifications laid down in Annex IV.1994L0063 — EN — 20.11.2003 — 001.001 — 6
▼B
3. By way of derogation, the provisions of paragraph 1, subpara-
graphs (a), (b) and (c) shall not apply to losses of vapours resultingfrom measuring operations using dipsticks in relation to:
(a) existing mobile containers; and
(b) new mobile containers which come into operation during the four
years following the date referred to in Article 10.
Article 6
Loadingintostorageinstallationsatservice stations
1. Loding and storage equipment shall be designed and operated in
accordance with the technical provisions of Annex III.
These provisions are designed to reduce the total annual loss of petrol
resulting from loading into storage installations at service stations to
below the target reference value of 0,01 w/w % of the throughput.
Member States may maintain or require more stringent measures
throughout their territory or in geographical areas where it is estab-
lished that such measures are necessary for the protection of humanhealth or the environment owing to specific conditions.
Member States may adopt technical measures for the reduction of
losses of petrol other than those set down in Annex III if such alterna-tive measures are demonstrated to have at least the same efficiency.
Member States shall inform the other Member States and the Commis-
sion of any existing measures or of any special measures referred to inthis paragraph which they contemplate taking and of their grounds fortaking them.
2. The provisions of paragraph 1 shall apply:
(a) from the date referred to in Article 10 for new service stations;
(b) three years from the date referred to in Article 10:
— for existing service stations with a throughput greater than
1 000 m
3/year,
— for existing service stations, regardless of their throughput,
which are located under permanent living quarters or working
areas;
(c) six years from the date referred to in Article 10 for existing service
stations with a throughput greater than 500 m3/year;
(d) nine years from the date referred to in Article 10 for all other
existing service stations.
3. By way of derogation, paragraphs 1 and 2 shall not apply to
service stations with a throughput of less than 100 m3/year.
4. For service stations with an annual throughput of less than 500 m3/
year, Member States may grant a derogation from the requirements ofparagraph 1 where the service station is located in a geographical areaor on a site where vapour emissions are unlikely to contribute signifi-
cantly to environmental or health problems.
Member States shall inform the Commission of the details of the areas
within which they intend to grant such derogation in the framework of
the reporting arrangements referred to in Article 9 and subsequently of
any changes to such areas.
5. The Kingdom of the Netherlands may grant a derogation from the
timetable set down in paragraph2, subject to th e following conditions:
— the measures required by this Article are implemented as part of a
broader, existing national programme for service stations whichsimultaneously addresses various environmental problems, suchaswater pollution, air pollution, ground pollution and waste pollution
and the implementation of which is tightly scheduled,
— the timetable may only be varied by a maximum of two years, all
programmes being completed within the time limit set out in para-graph2 (d),1994L0063 — EN — 20.11.2003 — 001.001 — 7
▼B
— the Commission shall be notified of the decision to diverge from
the timetable set down in paragraph 2, including full informationon the scope and deadline of the derogation.
6. The Kingdom of Spain and the Portuguese Republic may grant a
derogation of one year from the time limit set down in paragraph 2 (b).
Article 7
AmendmentstotheAnnexes
Except for the limit values refered to in Annex II, point 2, the amend-
ments necessary for adapting the Annexes to this Directive to technical
progress shall be adopted in accordance with the procedure specified in
Article 8.
Article 8
Thecommittee
1. The Commission shall be assisted by a committee.
2. Where reference is made to this Article, Articles 5 and 7 of Deci-
sion 1999/468/EC (
1) shall apply, having regard to the provisions of
Article 8 thereof.
The period laid down in Article 5(6) of Decision 1999/468/EC shall be
set at three months.
3. The Committee shall adopt its rules of procedure.
Article 9
Monitoringandreporting
The reports on the implementation of this Directive shall be established
according to the procedure laid down in Article 5 of Council Directive
91/692/EEC of 23 December 1991 standardizing and rationalizingreports on the implementation of certain Directives relating to theenvironment (
2). The Commission is invited to accompany its first
report where appropriate with proposals for the amendment of this
Directive, including in particular the extension of the scope to include
vapour control and recovery systems for loading installations and ships.
Article 10
Transpositionintonationallegislation
1. Member States shall bring into force the laws, regulations and
administrative provisions necessary to comply withth is Directive by31 December 1995. They shall forthwith inform the Commission
thereof.
When these measures are adopted by Member States, they shall contain
a reference to this Directive or shall be accompanied by such referenceon the occasion of their official publication. The methods of makingsuch a reference shall be laid down by the Member States.
2. Member States shall communicate to the Commission the texts of
the provisions of national law which they adopt in the field governedby this Directive.1994L0063 — EN — 20.11.2003 — 001.001 — 8
(1) Council Decision 1999/468/EC of 28 June 1999 laying down the procedures
for the exercise of implementing powers conferred on the Commission (OJ
L 184, 17.7.1999, p. 23).
(2) OJ No L 377, 31. 12. 1991, p. 48.▼M1
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Article 11
Finalprovision
This Directive is addressed to the Member States.1994L0063 — EN — 20.11.2003 — 001.001 — 9
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ANNEX I
REQUiREMENTSFORSTORAGEINSTALLATIONSATTERMINALS
1. The external wall and roof of tanks above ground must be painted in a
colour with a total radiant heat reflectance of 70 % or more. These operations
may be programmed so as to be carried out as part of the usual maintenance
cycles of the tanks within a period of three years. Member States may grant a
derogation from this provision where required for the protection of special land-
scape areas which have been designated by national authority.
This provision shall not apply to tanks linked to a vapour recovery unit which
conforms withth e requirements set out in Annex II, point 2.
2. Tanks withexternal floating roofs must be equipped witha primary seal to
cover the annular space between the tank wall and the outer periphery of the
floating roof and with a secondary seal fitted above the primary seal. The seals
should be designed to achieve an overall containment of vapours of 95 % or
more as compared to a comparable fixed-roof tank withno vapour-containment
controls (that is a fixed-roof tank with only vacuum/pressure relief valve).
3. All new storage installations at terminals, where vapour recovery is required
according to Article 4 of the Directive (see Annex II) must be either:
(a) fixed-roof tanks connected to the vapour recovery unit in conformity with
the requirements of Annex II; or
(b) designed witha floating roof, eith er external or internal, equipped with
primary and secondary seals to meet the performance requirements set
down in point 2.
4. Existing fixed-roof tanks must either:
(a) be connected to a vapour-recovery unit in conformity withth e requirements
of Annex II; or
(b) have an internal floating roof with a primary seal which should be designed
to achieve an overall containment of vapours of 90 % or more in relation to
a comparable fixed-roof tank withno vapour controls.
5. The requirements for vapour-containment controls mentioned under points 3
and 4 do not apply to fixed-roof tanks at terminals, where intermediate storage
of vapours is permitted according to Annex II, point 1.1994L0063 — EN — 20.11.2003 — 001.001 — 10
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ANNEX II
REQUIREMENTS FOR LOADING AND UNLOADING INSTALLA-
TIONSATTERMINALS
1. Displacement vapours from the mobile container being loaded must be
returned through a vapour-tight connection line to a vapour recovery unit for
regeneration at the terminal.
This provision does not apply to top-loading tankers as long as that loading
system is permitted.
At terminals which load petrol onto vessels, a vapour incineration unit may be
substituted for a vapour recovery unit if vapour recovery is unsafe or technically
impossible because of the volume of return vapour. The requirements
concerning atmospheric emissions from the vapour recovery unit shall also
apply to the vapour incineration unit.
At terminals with a throughput of less than 25000 tonnes/year, intermediate
storage of vapours may be substituted for immediate vapour recovery at the
terminal.
2. The mean concentration of vapours in the exhaust from the vapour recovery
— unit corrected for dilution during treatment — must not exceed 35 g/normal
cubic metre (Nm3) for any one hour.
For vapour recovery units, installed before 1 January 1993, the United Kingdom
may grant a derogation from the limit value of 35 g/Nm3for any one hour, set
down in this Annex, subject to the following conditions:
— the installation shall meet a limit value of 50 g/Nm3for any one hour
measured according to the specifications set down in this Annex,
— the derogation shall expire at the latest nine years from the date referred to
in Article 10 of the Directive,
— the Commission shall be notified of the individual installations affected by
this derogation including information on their throughput of petrol and
vapour emissions from the installation.
The Member States' competent authorities must ensure that the measurement
and analysis methods and their frequency are established.
The measurements must be made over the course of one full working day (seven
hours minimum) of normal throughput.
Measurements may be continuous or discontinuous. If discontinuous measure-
ments are employed, at least four measurements per hour must be made.
The overall measurement error due to the equipment used, the calibration gas
and the procedure used must not exceed 10 % of the measured value.
The equipment used must be capable of measuring concentrations at least as low
as 3 g/Nm3.
The precision must be at least 95 % of the measured value.
3. The Member States' competent authorities must ensure that the connection
lines and pipe installations are checked regularly for leaks.
4. The Member States' competent authorities must ensure that loading opera-
tions are shut down at the gantry in the case of a leak of vapour. Equipment
for such shutdown operations must be installed at the gantry.
5. Where top-loading of mobile containers is permissible, the outlet of the
loading arm must be kept near the bottom of the mobile container, in order to
avoid splashloading.1994L0063 — EN — 20.11.2003 — 001.001 — 11
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ANNEX III
REQUIREMENTS FOR LOADING AND STORAGE INSTALLATIIONS
AT SERVICE STATIONS AND TERMINALS WHERE THE INTER-
MEDIATESTORAGEOFVAPOURSISCARRIEDOUT
Vapours displaced by the delivery of petrol into storage installations at service
stations and in fixed-roof tanks used for the intermediate storage of vapours
must be returned through a vapour-tight connection line to the mobile container
delivering the petrol. Loading operations may not take place unless the arrange-ments are in place and properly functioning.1994L0063 — EN — 20.11.2003 — 001.001 — 12
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ANNEX IV
SPECIFICATIONSFOR BOTTOM-LOADING, VAPOUR COLLECTION
ANDOVERFILLPROTECTIONOFEUROPEANROADTANKERS
1.Couplings
1.1. The liquid coupler on the loading arm must be a female coupler which
must mate witha 4-inchAPI (101,6 mm) male adapter located on th e
vehicle as defined by:
— API Recommended Practice 1004
SeventhEdition, November 1988.
Bottom loading and vapour recovery for MC-306 tank motor vehicles
(Section 2.1.1.1 — Type of adapter used for bottom loading)
1.2. The vapour-collection coupler on the loading-gantry vapour-collection
hose must be a cam-and-groove female coupler which must mate with a
4-inch (101,6 mm) cam-and-groove male adapter located on the vehicle
as defined by:
— API Recommended Practice 1004
SeventhEdition November 1988.
Bottom loading and vapour recovery for MC-306 tank motor vehicles
(Section 4.1.1.2 — Vapour-recovery adapter)
2.Loadingconditions
2.1. The normal liquid-loading rate must be 2 300 litres per minute (maximum
2 500 litres per minute) per loading arm.
2.2. When the terminal is operating at peak demand, its loading gantry vapour
collection system, including the vapour-recovery unit, is allowed to
generate a maximum counterpressure of 55 millibar on the vehicle side
of the vapour-collection adapter.
2.3. All approved bottom-loading vehicles will carry an identification plate
which specified the maximum permitted number of loading arms which
may be operated simultaneously whilst ensuring that no vapours are
released via the compartment P and V valves, when the maximum plant
back pressure is 55 millibar as specified in 2.2.
3.Connectionofvehicle earth/overfill detection
The loading gantry must be equipped with an overfill-detection control
unit which, when connected to the vehicle, must provide a fail-safe
permission signal to enable loading, providing no compartment-overfill
sensors detect a high level.
3.1. The vehicle must be connected to the control unit on the gantry via a 10-
pin industry-standard electrical connector. The male connector must be
mounted on the vehicle and the female connector must be attached to a
flying lead connected to the gantry-mounted control unit.
3.2. The high-level detectors on the vehicle must be either 2-wire thermistor
sensors, 2-wire optical sensors, 5-wire optical sensors or a compatible
equivalent, provided the system is fail-safe. (NB: thermistors must have
a negative temperature coefficient.)
3.3. The gantry control unit must be suitable for both 2-wire and 5-wire
vehicle systems.
3.4. The vehicle must be bonded to the gantry via the common return wire of
the overfill sensors, which must be connected to pin 10 on the male
connector via the vehicle chassis. Pin 10 on the female connector must
be connected to the control-unit enclosure which must be connected to
the gantry earth.
3.5. All approved bottom-loading vehicles must carry an identification plate
(see 2.3) which specifies the type of overfill-detection sensors installed
(i. e. 2-wire or 5-wire).
4.Locationoftheconnections
4.1. The design of the liquid-loading and vapour collection facilities on the
loading gantry must be based on the following vehicle-connection
envelope.1994L0063 — EN — 20.11.2003 — 001.001 — 13
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4.1.1. The height of the centre line of the liquid adapters must be: maximum 1,4
metres (unladen); minimum 0,5 metre (laden), the preferred height being
0,7 to 1,0 metres).
4.1.2. The horizontal spacing of the adapters must be not less than 0,25 metres
(preferred minimum spacing is 0,3 metres).
4.1.3. All liquid adapters must be located within an envelope not exceeding 2,5
metres in length.
4.1.4. The vapour-collection adapter should be located preferably to the right of
the liquid adapters and at a height not exceeding 1,5 metres (unladen) and
not less than 0,5 metres (laden).
4.2. The earth/overfill connector must be located to the right of the liquid and
vapour-collection adapters and at a height not exceeding 1,5 metres
(unladen) and not less than 0,5 metre (laden).
4.3. The above connections must be located on one side of the vehicle only.
5.Safetyinterlocks
5.1.Earth/Overfill detection
Loading must not be permitted unless a permissive signal is provided by
the combined earth/overfill control unit.
In the event of an overfill condition or a loss of vehicle earth, the control
unit on the gantry must close the gantry-loading control valve.
5.2.Vapour-collection detection
Loading must not be permitted unless the vapour-collection hose has been
connected to the vehicle and there is a free passage for the displaced
vapours to flow from the vehicle into the plant vapour-collection system.1994L0063 — EN — 20.11.2003 — 001.001 — 14