MODUK - DEF STAN 91-48
Hydraulic Fluid, Petroleum: Superclean NATO Code No: H-515 Joint Service Designation: OM-15 Hydraulic Fluid, Petroleum: Normal NATO Code No: H-520 Joint Service Designation: OM-18
| Organization: | MODUK |
| Publication Date: | 16 May 1980 |
| Status: | inactive |
| Page Count: | 28 |
scope:
This Standard relates to two grades of petroleum base hydraulic fluid :
Hydraulic fluid , petroleum, super clean, is for use in aircraft and other critical systems where a high degree of fluid cleanliness is required. It is suitable for use in unpressurized hydraulic systems operating between minus 54°C and plus 90°C and between minus 54°C and plus 135°C in pressurized systems.
Hydraulic fluid , petroleum, normal, is for use in non-critical systems and other applications not requiring the high degree of cleanliness of the super clean grade. It is suitable for use in unpressurized hydraulic systems operating between minus 54°C and plus 90°C and between minus 54°C and plus 135°C in pressurized systems.
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