Hydraulic Institute (HI), under approval of American National Standards Institute (ANSI), seeks qualified individuals in North America to participate in reviewing updated draft of Standard ANSI/HI 10.1-10.5 Air-Operated Pumps for Nomenclature, Definitions, Application, and Operation and ANSI/HI 10.6 Air-Operated Pump Tests. Standards apply to positive displacement air operated pumps, including but not limited to diaphragm and bellows pumps.