Standards for Closed Feedwater Heaters, 8th Edition (HEI 110)
standard by Heat Exchange Institute, 2008
Standards for Air Cooled Condensers, 2nd Edition (HEI 121)
standard by Heat Exchange Institute, 2016
Standards for Direct Contact Barometric and Low Level Condensers, 8th Edition (HEI 117)
standard by Heat Exchange Institute, 2010
Performance Standards for Liquid Ring Vacuum Pumps and Compressors, 5th Edition (HEI 119)
standard by Heat Exchange Institute, 2017
Standards for Closed Feedwater Heaters, 9th Edition (HEI 2622)
standard by Heat Exchange Institute, 2015
Standards and Typical Specifications for Tray Type Deaerators, 10th Edition (HEI 120)
standard by Heat Exchange Institute, 2016