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ANSI/HI 10.1-10.5-2021
Air-Operated Pumps for Nomenclature, Definitions, Application, and Operation
This is a revision of the 2016 edition of the standard. In this edition the equations were updated accordingly, the graphs and illustrations in the document were edited slightly (where needed for provide clarity/accuracy), and technical requirements were updated (specifically NPSHA/NPSHR and the 10.0 section to match with approved standards numbering).
HI: Hydraulic Institute [hi]