The results are very different. The units as I said are identical from the same supplier in europe. The water flow is obtained by actually collecting the water for 60 seconds (actual test time) and measuring it using certified glassware, so there is no mechanical room for error in the amount...
Thank you for the quick response. A little more information about the tests. These tests are performed using identical pressure washer units (lab units, not your everyday pressure washer) to check for surface coating adhesion. Our lab here in the US will test a sample and get different...
I am looking for a formula to let me obtain a pressure reading comparison for two different tests based upon the following information:
I have a given flow rate in liters / minute. (same for each test)
I know the size of the orifice that the water is flowing through. (same for each test)...