ISO 20766-25:2022 pdf download – Road vehicles — Liquefied petroleum gas (LPG) fuel system components — Part 25: Gas connections. 4 Markings Marking of the component shall provide sufficient information to allow the following to be traced: a) the manufacturer ’s or agent ’s name, trademark or symbol; b) the model designation (part number); c) the working pressure or working pressure and temperature range; d) the serial number or date code; and e) the direction of flow (when necessary for correct installation). The following additional markings are recommended: — the type of fuel; — the electrical ratings (if applicable); —...