EVS-EN 16652-1:2016

This European Standard sets out the requirements for automotive LPG working areas and procedures, aimed at reducing the risk of fire and explosion of LPG when the following types of work or activity are carried out:
a)  equipping vehicles with an LPG system to use LPG for propulsion purposes;
b)  maintenance, servicing and repairs to the LPG system;
c)  any other LPG vehicle maintenance, servicing or repairs not involving the LPG system.
The operations described in items a) and b) above are undertaken in dedicated LPG working areas, whereas item c) is undertaken in general service working areas.
This Standard does not address how to equip a vehicle with an LPG retrofit system or how to repair or maintain an LPG vehicle.
NOTE  Such provisions are normally provided in the instruction manuals issued by the relevant manufacturers.