Herschel

ASTM D1401 ISO 6614 DIN 51599 (obs) WATER SEPARABILITY OF PETROLEUM OILS AND SYNTHETIC FLUIDS
This test method covers measurement of the ability of petroleum oils or synthetic fluids to separate from water. Although developed specifically for steam-turbine oils having viscosities of 28.8–90 mm2/s at 40°C, this test method may be used to test oils of other types having various viscosities and synthetic fluids at other test temperatures. It is recommended, however, that the test temperature be raised to 82 ±1°C when testing products more viscous than 90 mm2/s at 40°C. For higher viscosity oils where there is insufficient mixing of oil and water, Test Method D2711 is recommended.

MANUAL HERSCHELManual Herschel

Bath housed in a 200 mm dia. Pyrex tank, stainless steel heater controlled by a digital thermoregulator PID with overtemperature alarm and probe PT100A, programmable digital timer for duration of the test, motor stirrer for bath, centering for 6 emulsion cylinders mounted on a rotating plate so that the cylinders in the bath are under the stirrer motor axle, square bar supporting the stirrer motor with stop system allowing the exact immersion of the blade agitator, stainless steel blade agitator 19×1.5mm L=120 mm connected to a stainless steel Ø6 mm shaft.

Technical specifications:
– Temperature: from ambient to 90°C (194°F)
– Stability: ±0.1°C
– Power supply: 220V 50/60Hz
– Power: 1000W