prEN 1762
(Main)Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa) - Specification
Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa) - Specification
This document specifies the requirements for rubber hoses and rubber hose assemblies used for the transfer of liquefied petroleum gas (LPG) in liquid or gaseous phase and natural gas with a maximum working pressure of 25 bar (2,5 MPa) and vacuum within the temperature range of −30 °C to +70 °C and, when designated -LT, −50 °C to +70 °C.
Gummischläuche und -schlauchleitungen für Flüssiggas LPG (flüssig oder gasförmig) und Erdgas bis 25bar (2,5MPa) – Spezifikation
Dieses Dokument legt die Anforderungen für Gummischläuche und Gummischlauchleitungen fest, die für den Transport von Flüssiggas(LPG) in der flüssigen oder gasförmigen Phase verwendet werden, sowie für Erdgas mit einem maximalen Betriebsdruck von 25bar (2,5MPa) und einem Vakuum in einem Temperaturbereich von −30°Cbis+70°C und −50°Cbis+70°C, wenn es mit −LT bezeichnet wird.
Tuyaux et flexibles en caoutchouc pour le gaz de pétrole liquéfié GPL (en phase liquide ou gazeuse) et le gaz naturel jusqu'à 25 bar (2,5 MPa) - Spécification
Le présent document spécifie les exigences relatives aux tuyaux et assemblages flexibles en caoutchouc destinés au transfert de gaz de pétrole liquéfié (GPL) en phase liquide ou gazeuse et de gaz naturel avec une pression maximale de service de 25 bar (2,5 MPa) et sous vide dans la plage de température de −30 °C à +70 °C et, pour le type LT, de −50 °C à +70 °C.
Gumene cevi in cevni priključki za utekočinjeni naftni plin LPG (tekoča ali plinska faza) in zemeljski plin do 25 barov (2,5 MPa) - Specifikacija
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2026
Gumene cevi in cevni priključki za utekočinjeni naftni plin LPG (tekoča ali plinska
faza) in zemeljski plin do 25 barov (2,5 MPa) - Specifikacija
Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous
phase), and natural gas up to 25 bar (2,5 MPa) - Specification
Gummischläuche und -schlauchleitungen für Flüssiggas LPG (flüssig oder gasförmig)
und Erdgas bis 25bar (2,5 MPa) - Spezifikation
Tuyaux et flexibles en caoutchouc pour le gaz de pétrole liquéfié GPL (en phase liquide
ou gazeuse) et le gaz naturel jusqu'à 25 bar (2,5 MPa) - Spécification
Ta slovenski standard je istoveten z: prEN 1762
ICS:
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
83.140.40 Gumene cevi Hoses
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2025
ICS 23.040.70 Will supersede EN 1762:2018
English Version
Rubber hoses and hose assemblies for liquefied petroleum
gas, LPG (liquid or gaseous phase), and natural gas up to
25 bar (2,5 MPa) - Specification
Tuyaux et flexibles en caoutchouc pour le gaz de Gummischläuche und -schlauchleitungen für Flüssiggas
pétrole liquéfié GPL (en phase liquide ou gazeuse) et le LPG (flüssig oder gasförmig) und Erdgas bis 25 bar (2,5
gaz naturel jusqu'à 25 bar (2,5 MPa) -Spécification MPa) - Spezifikation
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 218.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1762:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Classification. 5
5 Materials and construction . 6
5.1 Hose . 6
5.2 Hose assemblies . 6
6 Dimensions. 6
6.1 Nominal bore, internal diameters, outside diameters, tolerances, and minimum bend
radius . 6
6.2 Minimum thickness of lining and cover . 8
6.3 Concentricity . 8
6.4 Tolerances on length . 9
7 Physical properties . 9
7.1 Rubber compounds . 9
7.2 Finished hose and hose assemblies . 10
8 Electrical properties . 12
8.1 General. 12
8.2 Textile reinforced hoses with bonding wires . 12
8.3 Textile reinforced hoses with conducting materials . 12
8.4 Wire helix reinforced hoses . 12
8.4.1 Grade M-hoses (see 8.2) . 12
8.4.2 Grade Ω-hoses (see 8.3) . 12
8.5 Hose assemblies that are required to be discontinuous . 12
9 Type testing . 13
10 Frequency of testing . 13
11 Marking . 13
11.1 Hoses . 13
11.2 Hose assemblies . 13
Annex A (normative) Test method for flammability . 14
Annex B (normative) Test frequency for type tests and routine tests . 16
Annex C (informative) Test frequency for production acceptance tests . 18
Annex D (informative) Environmental checklist . 20
Bibliography . 22
European foreword
This document (prEN 1762:2025) has been prepared by Technical Committee CEN/TC 218
“Rubber and plastics hoses and hose assemblies”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1762:2018.
EN 1762:2018:
a) extension of the material of the lining material
b) additional dimensions added in Table 1 and Table 2
c) revision of routine tests
d) in Clause 11, the requirement to include the year of publication of this document in the
marking has been deleted
e) water has been added as a test fluid in Annex A
f) the document has been editorially revised.
1 Scope
This document specifies the requirements for rubber hoses and rubber hose assemblies used for
the transfer of liquefied petroleum gas (LPG) in liquid or gaseous phase and natural gas with a
maximum working pressure of 25 bar (2,5 MPa) and vacuum within the temperature range of
−30 °C to +70 °C and, when designated -LT, −50 °C to +70 °C.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing
EN ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the
dimensions of hoses and the lengths of hose assemblies
EN ISO 6179, Rubber, vulcanized or thermoplastic — Rubber sheets and rubber-coated fabrics —
Determination of transmission rate of volatile liquids (gravimetric technique)
EN ISO 7233, Rubber and plastics hoses and hose assemblies — Determination of resistance to
vacuum
EN ISO 7326, Rubber and plastics hoses — Assessment of ozone resistance under static conditions
EN ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical
resistance and conductivity
EN ISO 8033, Rubber and plastics hoses — Determination of adhesion between components
EN ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary
EN ISO 10619-1, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 1: Bending tests at ambient temperature
EN ISO 10619-2, Rubber and plastics hoses and tubing — Measurement of flexibility and stiffness —
Part 2: Bending tests at sub-ambient temperatures
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 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 4649, Rubber, vulcanized or thermoplastic — Determination of abrasion resistance using a
rotating cylindrical drum device
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 8330 and the
following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
electrically bonded hose/hose assembly
hose/hose assembly that uses a metallic wire connection to conduct static electricity
3.2
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
3.3
electrically discontinuous hose/hose assembly
hose/hose assembly that incorporates a metallic wire connection to one end fittings of the
assembly only or is electrically insulated from both end-fittings
4 Classification
Hoses/hose assemblies for this application are classified into 5 types and 3 grades according to
their use, construction, and electrical properties. The maximum working pressure for all
hoses/hose assemblies is 25 bar.
The 5 types are as follows:
Type Application
D delivery hose
D-LT delivery hose, low temperature;
SD suction and delivery hose, helix reinforced
SD-LTS suction and delivery hose “smooth hose”, helix reinforced, low temperature
SD-LTR suction and delivery hose, rough bore (having an internal, non-embedded helical
wire of stainless steel), low temperature
Hoses for this application are divided into 3 grades according to their electrical properties:
Grade Electrical property
designation
M Electrically bonded
Ω Electrically conductive using a conductive rubber layer
Discontinuous Electrically discontinuous
5 Materials and construction
5.1 Hose
The hose shall consist of the following:
— a lining resistant to n-pentane;
— a reinforcement of layers of woven, braided or spirally wound textile material or braided or
spirally wound stainless steel wire,
— an embedded stainless steel metallic helix reinforcement (types SD, SD-LTS and SD-LTR only);
— two or more low resistance electrical bonding wires (grade “M” only);
— an outer cover of black or coloured synthetic rubber, resistant to abrasion and outdoor
exposure; the cover may be pricked to allow gas permeation. If the cover is not pricked a
comparative measurement of permeation between the rubber materia
...
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