Historical
NFPA/T3.9.22 R2-2000 (R2009)
Pump/motor - Pressure rating supplement to NFPA/T2.6.1 R2-2000, Fluid power components - Method for verifying the fatigue and establishing the burst pressure ratings of the pressure containing envelope of a metal fluid power pump and motor (Revision of NFPA/T3.9.22 R1-1995)
Provides: test and statistical methods for generating fatigue distribution data; test and 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 and an industry-wide philosophy in judging one type of pressure capability for fluid power pump/motor(s);uniform methods of product comparison.
National Fluid Power Association [nfpa-fluid]