
Fuel Hose Selection, Pipe Grading (Why R9), Connections & Clipping
It can be seen that R9 fuel hose that has been DESIGNED to work with modern fuels has less than 3% of the permitivity of 1980s & 1990s fuel hose. It even out performs the "A1" (ISO 7840) hosing mandated for use in the MARINE environment, where they are hugely stringent about fire-safety.! (See graph below)