This SAE Recommended Practice identifies general requirements for hydraulic fluids to be used for ship systems and equipment with respect to power transmission, lubrication, and passive applications. It also indicates the environmental limits with respect to power transmission, lubrication, and passive applications. It also indicates the environmental limits within which the fluids shall perform their intended purpose satisfactorily and reliably. Characteristics of particular importance to ship systems and equipment are discussed
SAE J1778-1998 history
2006SAE J1778-2006 Ship Systems and Equipment Recommended Practice for Hydraulic Fluid Selection
1998SAE J1778-1998 Ship Systems and Equipment - Recommended Practice for Hydraulic Fluid Selection