Small craft - Permanently installed petrol and diesel fuel tanks (ISO 21487:2012, including Amd 1:2014 and Amd 2:2015)

ISO 21487:2012 establishes requirements for design and test of petrol and diesel fuel tanks for internal combustion engines that are intended to be permanently installed in small craft of up to 24 m length of hull.
For installation requirements, ISO 10088 applies.

Kleine Wasserfahrzeuge — Fest eingebaute Ottokraftstoff- und Dieselkraftstofftanks (ISO 21487:2012)

Diese Internationale Norm legt Anforderungen an die Konstruktion und die Prüfung von fest eingebauten Ottokraftstoff- und Dieselkraftstofftanks für Verbrennungsmotoren auf kleinen Wasserfahrzeugen mit einer Rumpflänge bis 24 m fest.
Für Anforderungen an die Installation ist ISO 10088 anzuwenden.

Petits navires - Réservoirs à carburant à essence et diesel installés à demeure (ISO 21487:2012, y compris Amd 1:2014 et Amd 2:2015)

L'ISO 21487:2012 établit des exigences sur la conception et les essais des réservoirs à carburant essence et diesel pour les moteurs à combustion interne et destinés à être installés à demeure sur des bateaux d'une longueur de coque inférieure ou égale à 24 m.
L'ISO 10088 s'applique pour ce qui concerne les exigences d'installation.

Mala plovila - Trajno vgrajeni rezervoarji za bencinsko in dizelsko gorivo (ISO 21487:2012, vključno z dopolniloma A1:2014 in A2:2015)

Mednarodni standard določa zahteve za načrtovanje in preskušanje rezervoarjev za bencinsko in dizelsko gorivo za motorje z notranjim zgorevanjem, ki so namenjeni trajni vgradnji v mala plovila z dolžino trupa do 24 m. Zahteve glede namestitve so določene v standardu ISO 10088.

General Information

Status
Published
Publication Date
02-Oct-2018
Technical Committee
Drafting Committee
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
03-Oct-2018
Completion Date
03-Oct-2018

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SLOVENSKI STANDARD
SIST EN ISO 21487:2018
01-december-2018
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SIST EN ISO 21487:2013
SIST EN ISO 21487:2013/A1:2015
SIST EN ISO 21487:2013/A2:2016
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Small craft - Permanently installed petrol and diesel fuel tanks (ISO 21487:2012,

including Amd 1:2014 and Amd 2:2015)

Kleine Wasserfahrzeuge - Fest eingebaute Ottokraftstoff- und Dieselkraftstofftanks (ISO

21487:2012, einschließlich Amd 1:2014 und Amd 2:2015)

Petits navires - Réservoirs à carburant à essence et diesel installés à demeure (ISO

21487:2012, y compris Amd 1:2014 et Amd 2:2015)
Ta slovenski standard je istoveten z: EN ISO 21487:2018
ICS:
47.020.20 Ladijski motorji Marine engines and
propulsion systems
47.080 ýROQL Small craft
SIST EN ISO 21487:2018 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 21487:2018
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SIST EN ISO 21487:2018
EN ISO 21487
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2018
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN ISO 21487:2012
English Version
Small craft - Permanently installed petrol and diesel fuel
tanks (ISO 21487:2012, including Amd 1:2014 and Amd
2:2015)

Petits navires - Réservoirs à carburant à essence et Kleine Wasserfahrzeuge - Fest eingebaute

diesel installés à demeure (ISO 21487:2012, y compris Ottokraftstoff- und Dieselkraftstofftanks (ISO

Amd 1:2014 et Amd 2:2015) 21487:2012, einschließlich Amd 1:2014 und Amd
2:2015)
This European Standard was approved by CEN on 16 April 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21487:2018 E

worldwide for CEN national Members.
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SIST EN ISO 21487:2018
EN ISO 21487:2018 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of Directive 2013/53/EU aimed to be covered ....................................................... 4

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SIST EN ISO 21487:2018
EN ISO 21487:2018(E)
European foreword

The text of ISO 21487:2012, including Amd 1:2014 and Amd 2:2015 has been prepared by Technical

Committee ISO/TC 188 “Small craft” of the International Organization for Standardization (ISO) and has

been taken over as EN ISO 21487:2018.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by April 2019, and conflicting national standards shall be

withdrawn at the latest by April 2019.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 21487:2012.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive 2013/53/EU.

For relationship with EU Directive 2013/53/EU, see informative Annex ZA, which is an integral part of

this document.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

the United Kingdom.
Endorsement notice

The text of ISO 21487:2012, including Amd 1:2014 and Amd 2:2015 has been approved by CEN as EN ISO

21487:2018 without any modification.
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SIST EN ISO 21487:2018
EN ISO 21487:2018 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of Directive 2013/53/EU aimed to be covered

This European standard has been prepared under a Commission’s standardization request M/542

C(2015) 8736 final to provide one voluntary means of conforming to Essential Requirements of Directive

2013/53/EU.

Once this standard is cited in the Official Journal of the European Union under that Directive, compliance

with the normative clauses of this standard given in Table ZA.1 confers, within the limits of the scope of

this standard, a presumption of conformity with the corresponding Essential Requirements of that

Directive and associated EFTA regulations.

Table ZA.1 — Correspondence between this European Standard and Annex I and Annex II of

Directive 2013/53/EU
Essential Requirements of Clause(s)/sub- Remarks/Notes
Directive 2013/53/EU clause(s) of this EN

Annex I, Part A, 5.2.2 – Fuel tanks 4, 5, 6, 7, 8 This standard deals with the design

and test of petrol and diesel fuel tanks
and tank openings only.
This standard does not deal with the
ventilation of fuel tank spaces;
protection against fire from the
engine and other sources of ignition
and heat or separation from living
quarters.
Annex II - Components of In respect of fuel tanks and their

watercraft; (4) - Fuel tanks intended 4, 5, 6, 7, 8 openings when placed on the Union

for fixed installations and fuel hoses. market separately.

WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European

Standard is maintained in the list published in the Official Journal of the European Union. Users of this

standard should consult frequently the latest list published in the Official Journal of the European Union.

WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of

this standard.
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SIST EN ISO 21487:2018
INTERNATIONAL ISO
STANDARD 21487
Second edition
2012-11-15
Small craft — Permanently installed
petrol and diesel fuel tanks
Petits navires — Réservoirs à carburant à essence et diesel installés à
demeure
Reference number
ISO 21487:2012(E)
ISO 2012
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SIST EN ISO 21487:2018
ISO 21487:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved
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SIST EN ISO 21487:2018
ISO 21487:2012(E)
Contents Page

Foreword ............................................................................................................................................................................iv

1 Scope ...................................................................................................................................................................... 1

2 Normative references ......................................................................................................................................... 1

3 Terms and definitions ......................................................................................................................................... 1

4 General properties .............................................................................................................................................. 2

4.1 Resistance to liquids in contact ...................................................................................................................... 2

4.2 Copper-based alloys ........................................................................................................................................... 2

4.3 Provisions to tanks ............................................................................................................................................. 2

4.4 Installation of non-integral tanks .................................................................................................................... 3

5 Petrol fuel tanks: design and tests ................................................................................................................. 3

5.1 Design ..................................................................................................................................................................... 3

5.2 Tests to be performed ........................................................................................................................................ 3

6 Diesel fuel tanks: design and tests ................................................................................................................ 4

6.1 Design ..................................................................................................................................................................... 4

6.2 Tests to be performed ........................................................................................................................................ 4

7 Tests ........................................................................................................................................................................ 4

7.1 General ................................................................................................................................................................... 4

7.2 Hydraulic pressure test ..................................................................................................................................... 4

7.3 Pressure-impulse type test for petrol fuel tanks ........................................................................................ 6

7.4 General fire-resistance test of non-metallic fuel tanks ............................................................................. 6

7.5 As-installed fire-resistance test of non-metallic fuel tanks ..................................................................... 7

8 Marking ................................................................................................................................................................... 8

© ISO 2012 – All rights reserved iii
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SIST EN ISO 21487:2018
ISO 21487:2012(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International

Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 21487 was prepared by Technical Committee ISO/TC 188, Small craft.

This second edition cancels and replaces the first edition (ISO 21487:2006), which has been technically revised.

It also incorporates the Technical Corrigendum ISO 21487:2006/Cor.1:2008. The main changes from the first

edition are the following:

— diesel tanks shall be equipped with inspection hatch(es) for cleaning and inspection (4.3.10);

— metallic tanks may be static pressure tested as an alternative to the pressure-impulse test (5.2.2);

— non-metallic, non-integral tanks, if installed in an engine compartment, shall be fire tested (6.2.3);

— non-metallic tanks shall be marked with the maximum temperature to which the tank may be exposed (Clause 8).

iv © ISO 2012 – All rights reserved
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SIST EN ISO 21487:2018
INTERNATIONAL STANDARD ISO 21487:2012(E)
Small craft — Permanently installed petrol and diesel fuel tanks
1 Scope

This International Standard establishes requirements for design and test of petrol and diesel fuel tanks for internal

combustion engines that are intended to be permanently installed in small craft of up to 24 m length of hull.

For installation requirements, ISO 10088 applies.
2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced document

(including any amendments) applies.

ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids

ISO 10088, Small craft — Permanently installed fuel systems
ISO 11192, Small craft — Graphical symbols

ISO 12215-5, Small craft — Hull construction and scantlings — Part 5: Design pressures for monohulls, design

stresses, scantlings determination

ISO 12215-6, Small craft — Hull construction and scantlings — Part 6: Structural arrangements and details

ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) —

Quality levels for imperfections
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
petrol

hydrocarbon fuel or blend of hydrocarbon fuel and denatured ethanol which is liquid at atmospheric pressure

and is used in spark ignition engines
3.2
diesel

hydrocarbon fuel, biofuel or blend of these which is liquid at atmospheric pressure and is used in compression

ignition engines
3.3
spark ignition engine
engine in which an electrical spark is produced to ignite the fuel/air mixture
3.4
compression ignition engine

engine in which ignition is obtained by means of compressing the fuel/air mixture

3.5
permanently installed
securely fastened so that tools need to be used for removal
© ISO 2012 – All rights reserved 1
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SIST EN ISO 21487:2018
ISO 21487:2012(E)
3.6
integral tank
tank which forms part of the structure of the craft
4 General properties
4.1 Resistance to liquids in contact

4.1.1 All seals such as gaskets, o-rings and joint-rings shall be of non-wicking, i.e. non-fuel absorbent, material.

4.1.2 All materials used shall be resistant to deterioration by the fuel for which the system is designed and

to other liquids or compounds with which the material can come in contact as installed under normal operating

conditions, e.g. grease, lubricating oil, bilge solvents and sea water.
4.2 Copper-based alloys

Copper-based alloys for fittings are acceptable for direct coupling with all tank materials specified in Table 1,

except aluminium. Copper-based alloy fittings are allowed for aluminium tanks only if a galvanic barrier is

arranged between fitting and tank.
4.3 Provisions to tanks

4.3.1 There shall be provisions to determine the fuel level or quantity in the tank considering also the

requirements in 5.1.2 for petrol fuel tanks and 6.1.3 for diesel fuel tanks.

4.3.2 Metal tanks shall be designed or installed so that no exterior surface will trap water.

4.3.3 All rigid tubes and pipes which extend near the tank bottom shall have sufficient clearance to prevent

contact with the bottom during normal operation of the craft.

4.3.4 On metallic tanks, all metallic non-integral tank supports, chocks or hangers shall either be separated

from the surface of the tank by a non-metallic, non-hygroscopic, non-abrasive material or welded to the tank.

4.3.5 If baffles are provided, the total open area provided in the baffles shall be not greater than 30 % of the

tank cross section in the plane of the baffle.

4.3.6 Baffle openings shall be designed so that they do not prevent the fuel flow across the bottom or trap

vapour across the top of the tank.

4.3.7 The fuel fill pipe on the tank shall have a minimum inside diameter of 28,5 mm.

4.3.8 Each ventilation pipe on the tank shall have a minimum inside diameter of 11 mm (95 mm ) or a

ventilation opening designed to prevent the tank pressure from exceeding 80 % of the maximum test pressure

marked on the tank label when tested in accordance with ISO 10088.

4.3.9 Suitable metallic tank materials and minimum recommended material thicknesses required for

corrosion resistance are given in Table 1. Other materials may be used if they demonstrate equivalent fuel and

corrosion resistance.

4.3.10 Diesel tanks shall be equipped with inspection hatch(es) having a suitable diameter of at least 120 mm at

suitable position(s) for cleaning and inspection of the lowest part(s) of the tank. The hatch must remain accessible

when the tank has been installed in the craft. The hatch(es) may be located on the top or side of the tank.

2 © ISO 2012 – All rights reserved
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SIST EN ISO 21487:2018
ISO 21487:2012(E)
Table 1 — Metallic tank materials
Minimum nominal sheet
thickness for corrosion
Material Fuel
resistance
Copper, internally tin-coated 1,5 Petrol only
Aluminium alloys containing no more than 0,1 % copper 2,0 Diesel and petrol
Stainless steel, with all welding deposits removed 1 Diesel and petrol
Mild steel 2 Diesel only
Mild steel externally hot-dip zinc-coated after fabrication 1,5 Diesel only
Mild steel externally and internally hot-dip zinc-coated after
1,5 Petrol only
fabrication
Aluminized steel 1,2 Diesel and petrol
4.4 Installation of non-integral tanks
4.4.1 Tank mechanical fixing

Non-integral tanks shall be installed so that the loads due to the mass of the full tank are safely introduced into

the structure, with due consideration given to upward and downward acceleration due to the craft’s movements at

maximum speed in the sea. In this respect, continuous flexible supports spreading loads are preferable to rigid ones.

Metal or textile hold-down straps are considered as a good practice provided that chafe and corrosion are kept

to a minimum.
4.4.2 Other installation requirements

For other installation requirements (filling, vent lines, fuel circuit, etc.), ISO 10088 applies.

5 Petrol fuel tanks: design and tests
5.1 Design
5.1.1 Petrol fuel tanks shall not be integral with the hull.

5.1.2 Petrol fuel tanks shall have all fittings and openings on top, except metallic fill and ventilation pipes,

which may be connected to the sides or ends of metal petrol fuel tanks, provided that they are welded to the

tank and reach above the top of the tank.
5.1.3 Tank drains are not permitted on petrol fuel tanks.
5.2 Tests to be performed
5.2.1 Petrol fuel tanks shall be leakage tested in accordance with 7.2.1
5.2.2 Petrol fuel tanks shall be pressure-im
...

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