40 00 00 Process Interconnections
40 70 00 Instrumentation for Process Systems
40 71 00 Flow Measurement 40 72 00 Level Measurement 40 73 00 Pressure, Strain, and Force Measurement 40 74 00 Temperature Measurement 40 75 00 Process Liquid Analytical Measurement 40 76 00 Process Gas Analytical Measurement 40 77 00 Position and Motion Measurement 40 78 00 Panel Mounted Instruments 40 79 00 Miscellaneous Instruments, Calibration Equipment, Instrument Valves, and Fittings