FNB, here is a direct quote from the Birmingham Proof House, reference an article I wrote that was submitted to them, in draft, for comment:
"The reference in the artice to the CIP service pressure of 650 bar and proof pressure of 850 bar is a reference to crushers values; the equivalent transducer values that should be used for comparison with SAAMI transducer values are 740 bar service and 960 bar proof, i.e. 10,730 psi and 13,920 psi."
Not sure about other CIP members--I know they're supposed to be standardized--but the British at least still refer to crusher values with the term "bar". So it's not a question of a "gross math error", but rather "two peoples separated by a common language", as either GB Shaw or Churchill said about Brits and Americans.
Rocketman, it would get pricey to retest a whole bunch of different LUP rated loads. However, if you only want to check the psi values of one or two, just load them up and send them to Tom Armbrust.
