Historical
ANSI/ISA S77.42.01-1999
Fossil Fuel Plant Feedwater Control System - Drum Type
The standard is intended to assist in the development of design specifications covering the measurement and control of feedwater systems in boilers with steaming capacities of 200,000 lb/h (25 kg/s) or greater. The safe physical containment of the feedwater shall be in accordance with applicable piping codes and standards and is beyond the scope of this standard. ISA-dS77.42.01 supersedes ISA-S77.42 (ANSI withdrawn standard)
The International Society of Automation [isa]
