ISO 2929:2014
(Main)Rubber hoses and hose assemblies for bulk fuel delivery by truck — Specification
Rubber hoses and hose assemblies for bulk fuel delivery by truck — Specification
ISO 2929:2014 specifies the requirements for two groups of rubber hoses and rubber hose assemblies for loading and discharge of liquid hydrocarbon fuels with a maximum working pressure of 10 bar (1,0 MPa). Both groups of hoses are designed for: a) use with hydrocarbon fuels having an aromatic-hydrocarbon content not exceeding 50 % by volume and containing up to 15 % of oxygenated compounds; b) operation within the temperature range of − 30 °C to + 70 °C, undamaged by climatic conditions of − 50 °C to + 70 °C when stored in static conditions.
Tuyaux en caoutchouc et assemblages de tuyaux pour livraison en vrac d'hydrocarbures liquides par camions-citernes — Spécifications
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INTERNATIONAL ISO
STANDARD 2929
Fourth edition
2014-03-01
Rubber hoses and hose assemblies
for bulk fuel delivery by truck —
Specification
Tuyaux en caoutchouc et assemblages de tuyaux pour livraison en
vrac d’hydrocarbures liquides par camions-citernes — Spécifications
Reference number
ISO 2929:2014(E)
©
ISO 2014
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ISO 2929:2014(E)
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© ISO 2014
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ii © ISO 2014 – All rights reserved
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ISO 2929:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Classification . 2
5 Materials and construction . 2
6 Dimensions . 2
6.1 Nominal bore, internal diameter, outside diameter and their tolerances, service reeling
diameter and minimum bend radius . 2
6.2 Concentricity. 3
6.3 Tolerance on length . 3
6.4 Minimum thickness of lining and cover . 3
7 Physical properties . 3
7.1 Rubber compounds . 3
7.2 Finished hoses and hose assemblies . 4
8 Electrical resistance . 5
8.1 General . 5
8.2 M-grade . 5
8.3 Ω-grade . 6
9 Types of test . 6
10 Design verification testing (type testing) . 6
11 Marking . 6
11.1 Hoses . 6
11.2 Hose assemblies . 7
Annex A (normative) Method of test for strength of adhesion between components .8
Annex B (normative) Method of test for flexibility at 20 °C . 9
Annex C (normative) Method of test for flammability .10
Annex D (normative) Test method for security of coupling attachment .12
Annex E (normative) Tests to be carried out as part of design verification (type) and
routine testing .13
Annex F (informative) Recommended tests for production acceptance testing .14
Bibliography .15
© ISO 2014 – All rights reserved iii
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ISO 2929:2014(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Hoses (rubber and plastics).
This fourth edition cancels and replaces the third edition (ISO 2929:2002) which has been revised as
specified below.
This minor revision of the third edition (ISO 2929:2002) was required to bring this International
Standard up to date. The following changes were made.
— In Clause 2 (Normative references), reference to ISO 1746 (bending tests) has been replaced by
ISO 10619-1 as ISO 1746 has been withdrawn and replaced by ISO 10619-1.
— The same editorial changes have been made in the text of the standard wherever necessary and the
note in Clause 6 (referring to inside diameters above 80 mm) has been deleted.
— The term “type testing” has been added to Clause 10 and Annex E as this is now the normative term
for this type of test (according to ISO 8330).
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INTERNATIONAL STANDARD ISO 2929:2014(E)
Rubber hoses and hose assemblies for bulk fuel delivery by
truck — Specification
WARNING — Persons using this International Standard should be familiar with normal laboratory
practice. This International Standard does not purport to address all of the safety problems, if
any, associated with its use. It is the responsibility of the user to establish appropriate health and
safety practices and to ensure compliance with any national regulatory conditions.
1 Scope
This International Standard specifies the requirements for two groups of rubber hoses and rubber hose
assemblies for loading and discharge of liquid hydrocarbon fuels with a maximum working pressure of
10 bar (1,0 MPa).
Both groups of hoses are designed for:
a) use with hydrocarbon fuels having an aromatic-hydrocarbon content not exceeding 50 % by volume
and containing up to 15 % of oxygenated compounds;
b) operation within the temperature range of − 30 °C to + 70 °C, undamaged by climatic conditions of
− 50 °C to + 70 °C when stored in static conditions.
NOTE Hoses for use at temperatures lower than − 30 °C should be the subject of discussion between
manufacturer and end user.
This International Standard is not applicable to hoses and hose assemblies for LPG systems, aviation fuel
systems, fuel station systems or marine applications.
2 Normative references
The following documents, in whole or 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.
ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 10619-1, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness — Part 1:
Bending tests at ambient temperature
ISO 1817:2011, Rubber, vulcanized — Determination of the effect of liquids
ISO 4649:2010, Rubber, vulcanized or thermoplastic — Determination of abrasion resistance using a
rotating cylindrical drum device
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of
hoses and the lengths of hose assemblies
ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to vacuum
ISO 7326:2006, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance and
conductivity
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ISO 2929:2014(E)
ISO 8033, Rubber and plastics hoses — Determination of adhesion between components
ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8330 apply.
4 Classification
Hoses are designated as belonging to one of the following groups.
a) Group D: delivery hose, or, with certain restrictions, for use in low-vacuum applications (see footnote
to Table 3).
b) Group SD: suction and delivery hose, helix-reinforced.
Both of these groups can be:
— electrically bonded, in which case the hose is designated and marked M-grade; or
— electrically conductive, using a conductive rubber layer, in which case the hose is designated and
marked Ω-grade.
5 Materials and construction
If the hose is mandrel-built, particulate-type release agents shall not be used.
The hose shall be uniform in quality and free from porosity, air-holes, foreign inclusions and other
defects.
The hose shall consist of the following:
a) a lining of rubber resistant to hydrocarbon fuels;
b) a reinforcement of layers of woven, braided or spirally wound textile material;
c) an embedded helix reinforcement (group SD only);
d) two or more low-resistance electrical bonding wires (M-grade only);
e) an outer cover of rubber, resistant to abrasion, outdoor exposure and hydrocarbon fuels.
6 Dimensions
6.1 Nominal bore, internal diameter, outside diameter and their tolerances, service
reeling diameter and minimum bend radius
When measured in accordance with ISO 4671, the internal diameter and outside diameter and their
tolerances shall conform to the values specified in Table 1.
When determined in accordance with ISO 10619-1, the value of the minimum bend radius shall conform
to the values specified in Table 1.
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ISO 2929:2014(E)
Table 1 — Dimensions
Tolerance Tolerance Minimum external
Internal Outside Minimum bend
on internal on outside diameter of reeling
diameter diameter radius
Nominal diameter diameter drum used in service
bore
mm mm mm mm mm mm
Group D Group SD Group D Group SD
19 19,0 31,0 125 100 250 250
25 25,0 37,0 150 125 300 300
±0,5 ±1,0
32 32,0 44,0 200 150 400 350
38 38,0 51,0 250 175 500 400
50 50,0 66,0 300 225 600 500
±0,7
51 51,0 67,0 300 225 600 500
63 63,0 79,0 ±1,2 400 275 800 600
75 75,0 91,0 450 350 900 750
76 76,0 ±0,8 92,0 450 350 900 750
100 100,0 116,0 600 450 N.A. N.A.
±1,6
101 101,5 118,0 600 450 N.A. N.A.
150 150,0 ±1,6 170,0 ±2,0 900 750 N.A. N.A.
6.
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