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ILNAS-EN 17921:2024 Edition 03/2024
Natural gas fuelling stations - LNG unloading connector
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  • 34 / copy
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Abstract

This document specifies a harmonized unloading connector for LNG road tanker at LNG fuelling stations. This document is also applicable to LNG RID applications. While LNG is also transported by rail, European regulations are organized through the International Carriage of Dangerous Goods by Rail (RID). The same configuration as defined by this document, can be utilized. This document includes requirements for (at least): - functional description of the LNG unloading receptacle and LNG unloading nozzle; - technical layout description of the LNG unloading receptacle. The technical layout description of the LNG unloading nozzle is not part of this document. The basic functional requirement of the LNG unloading connector are as follows: - to prevent leakage of methane during operation and in particular during disconnecting; - easy handling, no spillage and purging with nitrogen during disconnecting. The loading connector between the LNG road tanker and the LNG terminal is not covered by this document. See Figure 1.

Status

Standard - Active

Origin

Technical Committee :
CEN/TC 326 : Natural Gas Vehicles - Fuelling and Operation

Implementation

start of the vote on the project    22/12/2022   date of ratification (dor)    08/01/2024
end of the vote on the project    16/03/2023   date of anouncement (doa)    30/06/2024
start of the vote on the final project    12/10/2023   date of publication (dop)    30/09/2024
end of the vote on the final project    07/12/2023   date of withdrawal (dow)    30/09/2024


Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference

International Classification for Standards (ICS codes) :

43.080.10 : Trucks and trailers
75.200 : Petroleum products and natural gas handling equipment

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