The Hydraulic Institute (HI) has recently added two new standards to its ANSI/HI Pump Standards. The first is the American National Standards for Air-Operated Pumps. This standard applies to air-operated pumps driven by a compressed gas (usually air) from an outside source and includes sections such as types, configurations, and nomenclature; definitions, design and application; and installation, operation, and maintenance. The second standard, the Air-Operated Pump Test Standard, applies to testing air-operated diaphragm and bellows pumps. It records test results and offers a uniform procedure for mechanical and other pump performance tests. For more information visit www.pumps.org.