Historical
ANSI/(NFPA)T2.13.7 R1-1997 (R2005)
Hydraulic fluid power - Petroleum fluids - Prediction of bulk moduli (second edition)
This standard specifies a procedure for predicting the bulk moduli of petroleum or hydrocarbon oils used as fluids (in the absence of air bubbles) in hydraulic fluid power systems and for other purposes.
National Fluid Power Association [nfpa-fluid]