ISO 19825:2018

INTERNATIONAL ISO
STANDARD 19825
First edition
2018-11
Road vehicles — Liquefied petroleum
gas (LPG) refuelling connector
Véhicules routiers — Connecteur de remplissage en gaz de pétrole
liquéfié (GPL)
Reference number
©
ISO 2018
© ISO 2018
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Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General construction requirements . 3
5 Nozzles . 4
6 Standard receptacle dimensions J15 and K15 . 4
7 Receptacles . 6
8 Instructions . 7
9 Marking . 7
10 Tests . 8
10.1 General requirements . 8
10.2 Impact resistance . 8
10.2.1 Nozzle test . 8
10.2.2 Receptacle test . 9
10.3 Leakage at room temperature . 9
10.4 Abnormal loads . 9
10.4.1 General. 9
10.4.2 Testing the unpressurised condition .10
10.4.3 Testing the pressurised condition .10
10.5 Mounting hardware torque .10
10.6 Leakage at low and high temperatures .10
10.7 Nozzle freezing .11
10.8 Durability .11
10.8.1 Endurance .11
10.8.2 Corrosion resistance .13
10.8.3 Brass material compatibility .14
10.8.4 Resistance to dry heat .14
10.8.5 Ozone ageing .14
10.8.6 Temperature cycle .15
10.8.7 Compatibility with Liquefied Petroleum Gas .15
10.8.8 Electrical continuity .15
10.9 Overpressure .15
10.10 Oxygen ageing .16
10.11 Non-metallic material immersion .16
10.12 Vibration resistance .17
10.13 Creep .17
10.14 Automotive fluid exposure.17
10.14.1 General.17
10.14.2 Test method .17
10.14.3 Fluids . . .18
10.14.4 Pass criteria .18
Annex A (normative) Critical dimensions of the nozzles .19
Annex B (informative) Manufacturing and production test plan .20
Bibliography .21
Foreword
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This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 41,
Specific aspects for gaseous fuels.
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iv © ISO 2018 – All rights reserved

Introduction
This document was developed for the design, examination, testing and certification of newly produced
Liquefied Petroleum Gas Vehicle fuelling nozzles and receptacles only.
A nozzle compliant with this document is functionally compatible from a safety and performance
perspective with all listed receptacles of compatible profile and system pressure. Similarly, a receptacle
compliant with this document is functionally compatible from a safety and performance perspective
with all listed nozzles of compatible profile and system pressure.
These standard profiles incorporate the design specifications (mating materials, geometry and
tolerances) which can be considered in the certification of a submitted nozzle or receptacle.
INTERNATIONAL STANDARD ISO 19825:2018(E)
Road vehicles — Liquefied petroleum gas (LPG) refuelling
connector
1 Scope
This document applies to Liquefied Petroleum Gas vehicle nozzles and receptacles, hereinafter referred
to as devices, constructed entirely of new, unused parts and materials. Liquefied Petroleum Gas fuelling
connectors consist of the following components, as applicable:
a) nozzle (mounted on dispenser side) (see Clause 5);
b) receptacle (mounted on vehicle) (see Clause 7).
This document applies to devices which have a gauge service pressure in the range of 110 kPa (Butane
rich at 20 °C) and 840 kPa (Propane at 20 °C), hereinafter referred to as [see 9.1 c)]:
— J15;
— K15.
This document also applies to:
— devices with standardized mating components;
— connectors which prevent Liquefied Petroleum Gas vehicles from being fuelled by other gaseous
fuels station dispensers; and
— Liquefied Petroleum Gas in accordance with ISO 9162.
NOTE All references to pressures (kPa) throughout this document are considered gauge pressures unless
otherwise specified.
This document does not apply to the fuel system of vehicle, with the exception of the Liquefied
Petroleum Gas receptacle.
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.
ISO 188, Rubber vulcanized — Accelerat
...