ANSI/FCI 99-2-2015 pdf free download.AMERICAN NATIONAL STANDARD PRESSURE REDUCING REGULATOR CAPACITY. 4.1 Suggested test set up and equipment is shown in Figure 1. Assure that all equipment has flow and pressure ratings equal to or greater than that expected in the test. Test set up can be per ISA 75.02.01 and ANSI B109.4. Accuracy of Instruments is also covered in...