This standard facilitates the determination of suitable hydraulic fluids for components used in aircraft hydraulic systems (excluding piping, hoses and fittings) during field assembly or testing of those components. Specifies the display method for This marking is not intended as a convenience when installing the component on an aircraft.
JIS W 2922:1996 history
1996JIS W 2922:1996 Aircraft -- Hydraulic components -- Marking to indicate fluid for which component is approved