- HM/HLP hydraulics
ISO VG 68
Premium zinc-free industrial hydraulic fluid
Hydraulic oil HLP — DIN 51524, part 2
HLP oils, mineral oils with oxidation, corrosion and antiwear additives; the most quoted reference in industrial hydraulics.
Parker Denison HF-0 — hydraulic fluid, most severe level
Most severe Denison hydraulic fluid level: wear tests on both vane and piston pumps, dry and with water.
Eaton E-FDGN-TB002-E — hydraulic fluids
The Eaton technical bulletin listing the requirements for hydraulic fluids in Eaton and Vickers equipment, including the vane pump wear test.
Hydraulic oil, type H HM — ISO 11158
The international standard for mineral hydraulic fluids; class HM is the antiwear oil, the ISO counterpart of DIN 51524-2 HLP.
| Property | Typical value | Method |
|---|---|---|
| ISO viscosity grade | 68 | ISO 3448 |
| ISO fluid type | HM | ISO 6743-4 |
| Kinematic viscosity @0°Cmm2/s | 977 | ASTM D445 |
| Kinematic viscosity @40°Cmm2/s | 68.6 | ASTM D445 |
| Kinematic viscosity @100°Cmm2/s | 8.9 | ASTM D445 |
| Viscosity index | 103 | ISO 2909 |
| Density @15°Ckg/m3 | 872 | ISO 12185 |
| Flash point (COC)°C | 242 | ASTM D92 (COC) |
| Pour point°C | -33 | ISO 3016 |

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