This standard applies to four grades of fluid suitable for use in hydraulic systems other than aircraft hydraulic systems.

Fluids to this standard are intended for use in hydraulic systems, including hydraulic variable speed gears and control mechanisms fitted with packing glands of suitable oil-resistant synthetic rubber. These fluids are not intended for use in aircraft hydraulic systems or in systems incorporating natural rubber components.

The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use.

Time-dated standard