4Seventy,
Thank you for the much appreciated input, corrections, etc. You are 100% correct that I had errors in BAR to psi figures, corrected in above edited version, along with a paragraph of explanation regarding CIP, etc. I am aware that France and Italy belong to CIP, but in this piece, I was quoting from highly accurate and reliable publication, "The Standard Directory of Proof Marks" so perhaps these two countries do their proof at somewhat higher pressures, at least 5% above CIP, for France, and at least 5+% for Italy, above CIP standard, though Italy certainly must not approach that upper end figure of 50% above service load pressure? It would be nice to know for certain, just how high that Italian proof is above the 30% figure?