BS ISO 12617:2015 pdf download

BS ISO 12617:2015 pdf download.Road vehicles — Liquefied natural gas (LNG) refuelling connector — 3,1 MPa connector
1 Scope
This International Standard specifies liquefied natural gas (LNG) refuelling nozzles and receptacles constructed entirely of new and unused parts and materials for road vehicles powered by LNG. An LNG refuelling connector consists of, as applicable, the receptacle and its protective cap (mounted on the vehicle) and the nozzle. This International standard is applicable only to such devices designed for a maximum working pressure of 3,4 MPa (34 bar) to those using LNG as vehicle fuel and having standardized mating components.
NOTE All references to pressures given in megapascals and bar (1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm 2 ) are to be considered gauge pressures, unless otherwise specified.
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 14469, Road vehicles — Compressed natural gas (CNG) refuelling connector
ISO 15500-2, Road vehicles — Compressed natural gas (CNG) fuel system components — Part 2: Performance and general test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 check valve
part of the receptacle, or of the nozzle, mounted inside which prevents return flow or venting of fuel after the nozzle was disconnected from the receptacle
3.2 cycle life
number of refuelling cycles, as specified in this International Standard, which the component can withstand without leak or without another fail of function
3.3 device
nozzle or receptacle
3.4 dry air
air with moisture content such that the dew point of the air at the required test pressure is at least 11 °C below the ambient test temperature
3.5 hydrostatic pressure
pressure to which a component is taken to verify the structural strength of the component
4.1 General
This International Standard was developed to use in the examination, testing, and certification of newly produced liquefied natural gas (LNG) vehicle refuelling nozzles and receptacles and, as such, applies only to the nozzles and receptacles used in LNG refuelling systems and not to the system itself. A nozzle certified to this International Standard will be functionally compatible from a safety and performance perspective with all listed receptacles of compatible profile and system pressure. Similarly, a certified receptacle will be functionally compatible from a safety and performance perspective with all the listed nozzles of compatible profile and system pressure. As there may eventually be many different kinds of nozzles and receptacles available from a variety of manufacturers which, for safety reasons, must all be compatible with one another, this International Standard specifies a receptacle profile. The nozzle probe shall comply with the receptacle profile. This standard profile incorporates the design specification (mating dimensions, geometry and tolerances, and material requirements) which can be considered in the certification of a submitted nozzle or receptacle. This International Standard refers only to one working pressure and one application.