Regelwerk
Gasfachliche Norm DIN EN 12186 Entwurf
2025-02
Gasinfrastruktur – Gas-Druckregelanlagen für Transport und Verteilung – Funktionale Anforderungen
inert gas according to EN 12327. For stations specified to be operated with hydrogen containing gases a second tightness test shall be done with gas or national accepted test gases (e.g. forming gas) at [...] the type of gas
If changing of the type of gas, in particular, from natural gas to…