SIST EN ISO 1825:2012
(Main)Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling - Specification (ISO 1825:2010)
Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling - Specification (ISO 1825:2010)
ISO 1825:2010 specifies the dimensions and construction of, and requirements for, four types of hose and hose assembly for use in all operations associated with the ground fuelling and defuelling of aircraft.
All four types are designed for
use with petroleum fuels having an aromatic-hydrocarbon content not exceeding 30 % by volume;
operation within the temperature range of -30 �C to +65 �C and such that they will be undamaged by climatic conditions of -40 �C to +70 �C when stored in static conditions;
operation at up to 2,0 MPa (20 bar) maximum working pressure, including surges of pressure which the hose can be subjected to in service.
Gummischläuche und -schlauchleitungen für die Bodenbetankung und Entleerung von Flugzeugen - Anforderungen (ISO 1825:2010)
Diese Internationale Norm legt die Maße, den Aufbau und die Anforderungen an vier Typen von Schläuchen und Schlauchleitungen fest, die bei allen Arbeiten in Zusammenhang mit der Bodenbetankung und Entleerung von Flugzeugen verwendet werden.
Alle vier Typen sind bestimmt für:
a) die Verwendung mit Kraftstoffen auf Mineralöl-Basis mit einem Volumenanteil an aromatischen Kohlen-wasser¬stoffen, der 30 % nicht übersteigt;
b) den Betrieb im Temperaturbereich von 30 °C bis 65 °C, so dass sie bei ruhiger Lagerung bei Klima-bedin¬gungen von 40 °C bis 70 °C unbeschädigt bleiben.
c) den Betrieb bei einem maximalen Betriebsdruck bis 2,0 MPa (20 bar) einschließlich Druckspitzen, denen der Schlauch während des Einsatzes ausgesetzt sein kann.
ANMERKUNG 1 Schläuche vom Typ C sind für die Anwendung bei üblichem Druck an allen Fahrzeugen zur Flug-zeug¬betankung vorgesehen. Sie können auch zum Füllen und Entleeren von Fahrzeugen/Eisenbahnwagen verwendet werden, wenn kein übermäßiges Vakuum auftritt.
ANMERKUNG 2 Schläuche vom Typ F können zur Flugzeugbetankung durch Fahrzeuge verwendet werden, die auch zur Entleerung bei hohen Fließgeschwindigkeiten dienen, wofür Schläuche vom Typ C nicht geeignet sind.
ANMERKUNG 3 Schläuche vom Typ E und Typ F können auch zum Füllen und Entleeren von Fahrzeugen/Eisen¬bahn-wagen, zur Übergabe vom Anhänger zum Zugfahrzeug und zur Versorgung von Hebebühnen (Steigleitungen) verwendet werden, um einen größeren Knickwiderstand zu haben.
Tuyaux et flexibles en caoutchouc pour le ravitaillement carburant et la vidange des avions au sol - Spécifications (ISO 1825:2010)
L'ISO 1825:2010 sp�cifie les dimensions, la construction et les exigences pour quatre types de tuyaux et de flexibles destin�s � �tre utilis�s pour toutes les op�rations de chargement et d�chargement de carburant des avions au sol.
Les quatre types sont con�us pour
�tre utilis�s avec des carburants � base de p�trole dont la teneur en hydrocarbures aromatiques ne d�passe pas 30 % en volume;
fonctionner dans une plage de temp�rature de -30 �C � +65 �C et �tre stock�s sans dommage dans des conditions climatiques de -40 �C � +70 �C, en position statique;
fonctionner jusqu'� une pression maximale de service de 20 MPa (20 bar), y compris les surpressions subies en service.
Gumene cevi in cevni priključki za pretakanje in praznjenje goriv letal na tleh - Specifikacija (ISO 1825:2010)
Ta mednarodni standard določa mere in konstrukcijo ter zahteve za štiri tipe cevi in cevnih priključkov za uporabo pri vseh operacijah, povezanih s pretakanjem in praznjenjem goriv letal na tleh. Vsi štirje tipi so namenjeni za a) uporabo z naftnimi gorivi z vsebnostjo aromatskih ogljikovodikov, ki ne presega 30 volumskih odstotkov; b) obratovanje v temperaturnem razponu med -30 °C in +65 °C in ostanejo nepoškodovani v klimatskih pogojih med -40 °C in +70 °C, če so skladiščeni v statičnem stanju; c) obratovanje pri maksimalnem delovnem tlaku 2,0 MPa (20 bar), vključno s sunki tlaka, ki jim je cev lahko izpostavljena med delovanjem.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 1825:2012
01-januar-2012
1DGRPHãþD
SIST EN 1361:2004
*XPHQHFHYLLQFHYQLSULNOMXþNL]DSUHWDNDQMHLQSUD]QMHQMHJRULYOHWDOQDWOHK
6SHFLILNDFLMD ,62
Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling -
Specification (ISO 1825:2010)
Gummischläuche und -schlauchleitungen für die Bodenbetankung und Entleerung von
Flugzeugen - Anforderungen (ISO 1825:2010)
Tuyaux et flexibles en caoutchouc pour le ravitaillement carburant et la vidange des
avions au sol - Spécifications (ISO 1825:2010)
Ta slovenski standard je istoveten z: EN ISO 1825:2011
ICS:
49.100 Oprema za servis in Ground service and
vzdrževanje na tleh maintenance equipment
83.140.40 Gumene cevi Hoses
SIST EN ISO 1825:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 1825:2012
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SIST EN ISO 1825:2012
EUROPEAN STANDARD
EN ISO 1825
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2011
ICS 83.140.40; 49.100 Supersedes EN 1361:2004
English Version
Rubber hoses and hose assemblies for aircraft ground fuelling
and defuelling - Specification (ISO 1825:2010)
Tuyaux et flexibles en caoutchouc pour le ravitaillement Gummischläuche und -schlauchleitungen für die
carburant et la vidange des avions au sol - Spécifications Bodenbetankung und Entleerung von Flugzeugen -
(ISO 1825:2010) Anforderungen (ISO 1825:2010)
This European Standard was approved by CEN on 15 April 2011.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1825:2011: E
worldwide for CEN national Members.
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SIST EN ISO 1825:2012
EN ISO 1825:2011 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 1825:2012
EN ISO 1825:2011 (E)
Foreword
The text of ISO 1825:2010 has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber
products” of the International Organization for Standardization (ISO) and has been taken over as
EN ISO 1825:2011 by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies”
the secretariat of which is held by BSI.
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 November 2011, and conflicting national standards shall be withdrawn
at the latest by November 2011.
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 EN 1361:2004.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 1825:2010 has been approved by CEN as a EN ISO 1825:2011 without any modification.
3
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SIST EN ISO 1825:2012
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SIST EN ISO 1825:2012
INTERNATIONAL ISO
STANDARD 1825
Third edition
2010-03-15
Rubber hoses and hose assemblies for
aircraft ground fuelling and defuelling —
Specification
Tuyaux et flexibles en caoutchouc pour le ravitaillement carburant et la
vidange des avions au sol — Spécifications
Reference number
ISO 1825:2010(E)
©
ISO 2010
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
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ii © ISO 2010 – All rights reserved
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 Classification .3
5 Service reeling diameter.3
6 Materials and construction.3
7 Dimensions and tolerances.4
8 Physical properties .5
9 Electrical properties .7
10 Frequency of testing .8
11 Marking.8
12 Test certificate/report.9
13 Cleanliness.9
14 Protection for dispatch and storage.9
Annex A (normative) Method for determination of fuel-soluble matter .10
Annex B (normative) Method of test for cold embrittlement.11
Annex C (normative) Method for determination of adhesion between components.12
Annex D (normative) Method for determination of resistance to fuel contamination .13
Annex E (normative) Method of test for flexibility at 20 °C .14
Annex F (normative) Method of test for flexibility at −30 °C.15
Annex G (normative) Method of test for crush recovery .16
Annex H (normative) Method for determination of cyclic kinking resistance .17
Annex I (normative) Flammability test.18
Annex J (normative) Hydrostatic tests .20
Annex K (normative) Method of test for vacuum resistance.21
Annex L (normative) Method of test for security of attachment of couplings .22
Annex M (normative) Type testing and routine testing .23
Annex N (informative) Recommended tests for production acceptance testing .24
Annex O (informative) Recommended practice for hose flushing and handling.25
Bibliography.27
© ISO 2010 – All rights reserved iii
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SIST EN ISO 1825:2012
ISO 1825:2010(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 1825 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 1, Hoses (rubber and plastics).
This third edition cancels and replaces the second edition (ISO 1825:1996), which has been technically
revised (for details, see the Introduction).
iv © ISO 2010 – All rights reserved
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
Introduction
This specification has been updated to bring it into line with the two most common specifications used for this
product in the field, EN 1361:2004 and API 1529, 6th edition. As the 1996 edition of ISO 1825 was closer to
EN 1361, EN 1361 was used as the basis for redrafting. Where possible, an attempt has been made to align
all three specifications. As a result of this, the following changes have been made to the specification:
a) type A (hoses without any special electrical properties) has been eliminated;
b) type D (hoses with a conductive cover but without a low-extraction tube compound) has been eliminated;
c) there are now four hose types (all with a low-extraction tube);
d) a hose flammability test has been introduced;
e) a cyclic kinking test has been introduced;
f) a flex test at −30 °C has been introduced;
g) the flexibility at room temperature test is carried out at 20 °C as opposed to 23 °C originally.
© ISO 2010 – All rights reserved v
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SIST EN ISO 1825:2012
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SIST EN ISO 1825:2012
INTERNATIONAL STANDARD ISO 1825:2010(E)
Rubber hoses and hose assemblies for aircraft ground fuelling
and defuelling — Specification
1 Scope
This International Standard specifies the dimensions and construction of, and requirements for, four types of
hose and hose assembly for use in all operations associated with the ground fuelling and defuelling of aircraft.
All four types are designed for
a) use with petroleum fuels having an aromatic-hydrocarbon content not exceeding 30 % by volume;
b) operation within the temperature range of −30 °C to +65 °C and such that they will be undamaged by
climatic conditions of −40 °C to +70 °C when stored in static conditions;
c) operation at up to 2,0 MPa (20 bar) maximum working pressure, including surges of pressure which the
hose can be subjected to in service.
NOTE 1 Type C hoses are intended for general pressure applications on all vehicles used for plane fuelling. They can
also be used for vehicle/rail car loading and discharge where excessive vacuum does not occur.
NOTE 2 Type F hoses can be used for plane delivery applications on vehicles that are also used for defuelling at high
flow rates where type C hoses are not suitable.
NOTE 3 Type E and F hoses can also be used for vehicle/rail car loading and discharge, for trailer to fueller transfer
and for elevation platform supply (riser) to provide greater kink resistance.
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 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 1382, Rubber — Vocabulary
ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
ISO 1817:2005, Rubber, vulcanized — Determination of the effect of liquids
ISO 2230, Rubber products — Guidelines for storage
ISO 4649:2002, Rubber, vulcanized or thermoplastic — Determination of abrasion resistance using a rotating
cylindrical drum device
© ISO 2010 – All rights reserved 1
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of
hoses and the lengths of hose assemblies
1)
ISO 4672:1997, Rubber and plastics hoses — Sub-ambient temperature flexibility tests
ISO 6246, Petroleum products — Gum content of light and middle distillate fuels — Jet evaporation method
ISO 7326, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
ISO 7989-1, Steel wire and wire products — Non-ferrous metallic coatings on steel wire — Part 1: General
principles
ISO 7989-2, Steel wire and wire products — Non-ferrous metallic coatings on steel wire — Part 2: Zinc or
zinc-alloy coating
ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance and
conductivity
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 1382 and ISO 8330 and the
following apply.
3.1
hose assembly
hose with either permanent or reusable end fittings attached
3.2
electrically bonded hose/hose assembly
hose/hose assembly that uses a metallic wire connection to conduct static electricity
3.3
electrically conductive hose/hose assembly
hose/hose assembly that is capable of conducting static electrical charges, using a conductive rubber layer,
without the use of a metallic wire
1) Under revision as ISO 10619-2.
2 © ISO 2010 – All rights reserved
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
4 Classification
Hoses for this application are classified into four types and two grades according to their construction and
electrical properties.
Type Grade Construction
B M Electrically bonded, incorporating at least two low-resistance electrically conductive
wires and a conductive cover compound.
C Electrically conductive, incorporating a conductive cover compound.
Ω
E M Electrically bonded, incorporating at least one metallic wire helix, at least two low-
resistance electrically conductive wires and a conductive cover compound. Has an
enhanced defuelling capability.
F Electrically conductive, incorporating at least one non-electrically conductive non-
Ω
metallic helix and a conductive cover compound.
5 Service reeling diameter
Hoses shall be designed for operation on equipment fitted with hose reels of the diameters given in Table 1.
NOTE These hoses remain substantially circular in cross-section when reeled on drums and should not be confused
with hoses of the collapsible type that are intended to be reeled flat.
Table 1 — Service reeling diameters
Minimum external diameter of
Nominal internal diameter
reeling drum used in service
of hose
mm
19,0 225
25,0 300
31,5 375
38,0 450
50,0 550
63,0 600
76,0 600
100,0 900
101,5 900
6 Materials and construction
6.1 Hoses
If the hose is mandrel-built and vulcanized on a mandrel, particulate-type release agents shall not be used.
The hose shall be uniform in quality and be free from porosity, air holes, foreign inclusions and other defects
when inspected visually.
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
The hose shall comprise the following components:
⎯ a lining of synthetic rubber resistant to petroleum fuel;
⎯ a reinforcement consisting of layers of woven, braided or spirally wound textile material;
⎯ an outer cover made of synthetic rubber which shall be conductive and resistant to abrasion, outdoor
exposure and petroleum fuel.
For type E and F hoses only, an embedded helix reinforcement shall be included in the construction. For
type E hoses, the wire reinforcement used shall be a hard steel and shall have a galvanized finish in
accordance with ISO 7989-1 and ISO 7989-2.
Types B and E shall also incorporate low-resistance electrically conductive wires to ensure that the hoses are
electrically conductive.
The cover may have a shallow cloth-marked finish.
6.2 Hose assemblies
In order to produce the required electrical properties, the method of attachment of the couplings shall be in
accordance with Clause 9.
7 Dimensions and tolerances
7.1 Internal diameter
When measured in accordance with the most appropriate method in ISO 4671, the internal diameter shall lie
within the tolerance limits specified in Table 2.
Table 2 — Internal diameters and tolerances
Internal diameter Tolerance limits
mm mm
19,0 ± 0,8
25,0
± 0,8
31,5 ± 0,8
38,0 ± 0,8
50,0 ± 1,2
63,0 ± 1,2
76,0
± 1,2
100,0 ± 1,6
101,5 ± 1,6
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
7.2 Thickness
When measured in accordance with the most appropriate method in ISO 4671, the thickness of the lining shall
be not less than 1,6 mm.
When measured in accordance with the most appropriate method in ISO 4671, the thickness of the cover shall
be not less than 1,6 mm for hoses of nominal bore less than 50 and not less than 2,0 mm for hoses of nominal
bore 50 and greater.
7.3 Concentricity
When determined in accordance with the most appropriate method in ISO 4671, the concentricity, based on a
total indicator reading between the bore and the outside surface of the cover, shall be no greater than 1,0 mm.
7.4 Tolerances on length
The tolerances on the measured length shall be ± 1 % of the specified length.
7.5 Mass per unit length of hose
The maximum mass per unit length shall be as given in Table 3.
Table 3 — Mass per unit length of hose
Maximum mass per unit length of hose
Nominal internal diameter
Types B and C Types E and F
kg/m kg/m
19,0 0,9 1,1
25,0 1,1 1,5
31,5 1,4 1,9
38,0 1,7 2,2
50,0 2,7 3,0
63,0 3,5 4,0
76,0 4,0 4,7
100,0 6,5 7,5
101,5 6,5 7,5
8 Physical properties
8.1 Rubber compounds
The physical properties of the rubber compounds used for the lining and cover shall comply with the values
given in Table 4, when tested by the methods listed in Table 4. Tests shall be carried out on test pieces or test
samples taken either from the hose or from separately vulcanized sheets, except for the cold embrittlement
and abrasion resistance tests which shall be carried out on moulded test pieces vulcanized to the same state
as the hose. The tests which shall be carried out for type testing and routine testing are given in Annex M. The
tests recommended for production acceptance testing are given in Annex N.
© ISO 2010 – All rights reserved 5
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
Table 4 — Requirements for rubber compounds
Requirement
Property Unit Method of test
Lining Cover
Tensile strength, min. MPa 7,0 7,0 ISO 37
(dumb-bell test pieces)
Elongation at break, min. % 250 300 ISO 37
(dumb-bell test pieces)
Change in volume (swelling) in fuel, max. % 50 75 7.3 of ISO 1817:2005
(48 h at 40 °C in liquid B)
Fuel-soluble matter, max. % 4,0 Not applicable Annex A
Cold embrittlement No cracking No cracking Annex B
3
Abrasion resistance, max. mm Not applicable 140 Method A of ISO 4649:2002
Ageing ISO 188 (7 days at 70 °C)
(air-oven method)
Tensile strength change, max. % ± 30 ± 30 ISO 37 (see above)
Elongation at break change, max. % ± 30 ± 30 ISO 37 (see above)
8.2 Finished hoses and hose assemblies
Finished hoses and hose assemblies shall meet the requirements specified in Table 5.
Table 5 — Requirements for finished hoses and hose assemblies
Property Requirement Method of test
Hose dimensions
Internal diameter See Table 2 ISO 4671
Lining thickness, min. 1,6 mm ISO 4671
Cover thickness, min. 1,6 mm (nominal bore < 50) ISO 4671
2,0 mm (nominal bore 50 and greater)
Concentricity, max. 1,0 mm ISO 4671
Length tolerances ± 1 % ISO 4671
Mass per unit length, max. See Table 3
Hose tests
Adhesion between components (dry), min. 3,0 N/mm Annex C
After contact with fuel, min. 2,0 N/mm
Fuel contamination, R , max. 10 mg/100 ml Annex D
e
Ozone resistance No cracking observed under ×2 magnification ISO 7326 (40 °C)
Flexibility at ambient and low temperature No permanent deformation or visible structural damage, Annex E (20 °C)
no increase in electrical resistance outside the specified
Annex F (30 °C)
limits, no impairment of electrical continuity and shall
comply with the proof-pressure requirements in Annex J
at (20 ± 5) °C.
Crush recovery (type F only) Annex G
After 1 min Regains 90 % of original diameter
After 10 min Regains 95 % of original diameter
Shall comply with the proof-pressure requirement in
Annex J at (20 ± 5) °C
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
Table 5 (continued)
Property Requirement Method of test
Cyclic kinking (types B and C only) No leakage at proof pressure at (20 ± 5) °C Annex H
No increase in electrical resistance or impairment of
electrical continuity
Any adhesion between components to be less than
2,0 N/mm
Flammability Annex I
Hose shall cease burning immediately on removal of
flame and there shall be no glowing visible after 2 min
Change in length at working pressure, Types B and C: 0 to +7 % Annex J
max.
Types E and F: 0 to +12 %
Proof pressure At 4,0 MPa (40 bar): Annex J
No leakage or damage
No increase in electrical continuity or resistance beyond
the specified limits
Burst pressure, min. 8,0 MPa (80 bar) Annex J
Vacuum test Types B and C at 15 kPa (0,15 bar) absolute: no visible Annex K
structural damage
Types B and C at 85 kPa (0,85 bar) absolute: loss of
circularity not to exceed 20 % of internal diameter
Type E at 15 kPa (0,15 bar) absolute: ball shall pass and
no visible structural damage
Type F at 35 kPa (0,35 bar) absolute: ball shall pass and
no visible structural damage
Electrical properties The electrical properties of the hose shall be such that 9.1, 9.2
the electrical requirement for the hose assemblies is met.
Hose assembly tests
Proof pressure At 4,0 MPa (40 bar): Annex J
No leakage or damage
No increase in electrical continuity or resistance outside
the specified limits
Security of couplings No leakage or movement of the couplings out of the hose Annex L
at the specified pressures
Electrical properties Types B and E: resistance 100 Ω max. 9.1
3 6
Types C and F: resistance 10 to 10 Ω 9.2
9 Electrical properties
9.1 Type B and type E (electrically bonded)
No fewer than two low-resistance electrical bonding wires shall be provided between, or incorporated in, the
reinforcement plies and arranged in such a manner that electrical continuity is maintained along the length of
the hose in service. Each bonding wire shall have not less than nine strands. The metal used shall have high
resistance to fatigue.
When attaching couplings to type B and type E hoses, the protruding length of bonding wire shall be folded
into the hose bore, positioned between the lining and the fitting tail and extending along approximately half the
length of the fitting tail. If the hose is supplied without couplings, the bonding wires shall protrude
approximately 150 mm at each end of the hose. When tested in accordance with ISO 8031, the electrical
resistance of each assembly shall be no greater than 100 Ω.
NOTE When confirming electrical continuity on production hose assembly tests, a suitable and quick method is by
the use of a 4,5 V battery and a 3,5 V, 0,3 A test bulb. A dimly lighted bulb is sufficient to indicate satisfactory continuity.
© ISO 2010 – All rights reserved 7
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SIST EN ISO 1825:2012
ISO 1825:2010(E)
9.2 Type C and type F (electrically conductive incorporating a semi-conductive cover
compound)
For assemblies, it is necessary to create a connection between the hose cover and the coupling. When tested
3 6
in accordance with ISO 8031, the electrical resistance of each assembly shall be between 10 Ω and 10 Ω.
10 Frequency of testing
Type testing is carried out in order to confirm that all the material, construction and test requirements of this
International Standard are met by the method of manufacture and hose design. Type tests shall be repeated
at least every five years or whenever a change in method of manufacture or materials occurs.
Routine tests are those tests that shall be carried out on all hoses and hose assemblies prior to dispatch.
Production acceptance tests are those tests which should preferably be carried out by the manufacturer to
control the quality of its products.
Type tests and routine tests are specified in Annex M.
Production acceptance tests are given in Annex N. The frequencies specified in Annex N are given as a guide
only.
11 Mar
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