This standard BS EN 16922:2017+A1:2019 Railway applications. Ground based services. Vehicle waste water discharge equipment is classified in these ICS categories:
45.060.20 Trailing stock
This European Standard specifies the interface requirements for controlled emission toilet equipment on railway vehicles and the infrastructure, including catering area sink waste retention tanks. Vehicle and infrastructure specific requirements are also given. The European Standard includes fixed and portable infrastructure equipment used to empty retention tanks, but excludes equipment fitted to railway vehicles where no fixed connections are used between vehicle and infrastructure.
