Hydraulic Oil Testing Parameters and Test Methods
| PARAMETERS | TEST METHODS |
| Total Acid Number(TAN)/ Base Number Viscosity @ 40 °C / Viscosity @ 100 °C Water content Pentane Insolubles Flash point Wear Metals & Contaminants Iron Chromium Silicon Aluminium Lead Copper Tin Particle Count • > 4 µ • > 6 µ • > 14 µ • > 21 µ • > 38 µ • > 70 µ |
ASTM D 974/ ASTM D 2896 ASTM D 445 ASTM D 6304 / ASTM D 95 ASTM D 893 ASTM D 92 ASTM D 5185 – – – – – – – ISO 4406 – – – – – – |