Section 7.3 was designed to give the user a method of proving the process is repeatable not to determine intensity. The “arc height” at the Target Arc Height is just a number. I understand you problem, I often face similar problems when trying to explain this principle to auditors/customers. The majority of the customers I deal with would also like to see T2 and or the Target Arc Height within the B/P specified range. All of which is possible. However, it deviates from the written requirement in AMS 2430 / SAE J443. I can tell you that I am presently working with two large Aerospace primes trying to get them to “buy into” this new method. Or, at the very least get them to document how they would like things to be done in a supplemental document. One important thing to remember you could always write your internal procedures to meet both your customers perceived requirement and the AMS 2430 / SAE J443 requirement. i.e. you could say “The resulting arc height readings must then repeat within +/-.0015”. However, the resultant arc height readings must remain within the intensity tolerance band.”
