RT Web Page SR Electronic(1) ID 189453 A1 A. Illingworth T1 Fittings YR 2015 FD 2015-12-22 NO Testing and Inspection PB Begell House Inc. PP New York DO 10.1615/hedhme.a.000453 RD 2024-11-26 UL https://hedhme.com/content_map/?article_id=453&link_id=189 WT HEDH Multimedia - Heat Exchanger Design Handbook, Multimedia Edition WP 2015-12-22