Historical
ANSI/(NFPA)T3.9.22 R2-2000 (R2005)
Pump motor - Pressure rating supplement to NFPA/T2.6.1 R1-1991, Fluid power systems and products - Method for verifying the fatigue and establishing the burst pressure rating of the pressure containing envelope of a metal fluid power pump and motor
This standard provides: test & statistical methods for generating fatigue distribution data; test & statistical methods for conducting a verification of the pressure ratings of the pressure containing envelope on positive displacement fluid power pump/motor(s); common requirements & an industry-wide philosophy in judging one type of pressure capability for fluid power pump/motor(s); uniform methods of product comparison. This standard limits conditions as follows: constant amplitude, pressure induced loading of the elements that constitute or maintain the pressure containing envelope; pump/motor(s) that are used on systems that use a liquid, rather than a gas to transmit power; defined conditions for pressure levels & pulse durations.
National Fluid Power Association [nfpa-fluid]