TECHNICAL DATA SHEET DESCRIPTION Hydraunycoil FH 19 is a petroleum-based hydraulic fluid with a viscosity of 25 cSt at 40°C and a viscosity index exceeding 350. It exhibits mild anti-rust properties. Hydraunycoil FH 19 can be used over an extremely wide temperature range, from - 35°C to + 135°C in air-tight circuits. APPLICATION Hydraunycoil FH 19 is intended primarily for use on ordnance equipment such as recoil systems and hydraulic systems for rotating weapon or aiming devices on Navy vessels. Typical Result Test method visual examination - Density at 20°C - Kinematic viscosity at 100°C 40°C - 20°C - 35°C - Stability 72h at - 37°C - Pour point °C - 60 max. - 40 ASTM D 97 - Total acid number mg KOH/g 0.03 max. 0.30 ASTM D 974 - Steel-on steel wear, 1h at 40 kg - Oxidation test, 72h at 93°C KV100°C change KV - 20°C change Acid number change Acid number change of water layer - Baryum content - Calcium content - Zinc content - Corrosion Test - Water content - pass no corrosion ASTM D 665A