ASTM D4684 Yield Stress And Apparent Viscosity Of Engine Oils
Brand KN
Product origin Dalian,China
Delivery time deliver as soon as received payment
Supply capacity 30 sets one month
An engine oil sample is held at 80°C and then cooled at a programmed cooling rate to a final test temperature and held for a specified time period. At the end of this period, a series of increasing low torques are applied to the rotor shaft until rotation occurs to determine the yield stress, if any is exhibited. A higher torque is then applied to determine the apparent viscosity of the sample.
KN-4684 Yield Stress Apparent Viscosity of Engine Oils Apparatus
Overview
KN-4684 Yield Stress Apparent Viscosity of Engine Oils Apparatus is suitable to the standards of ASTM D3829 and ASTM D4684. It is used to predict the borderline pumping temperature and determine the yield stress apparent viscosity of engine oils at low temperature. Temperature controlled from -10~-40℃. All the testing processes controlled by the computer automatically.
Features
Touch screen operation, built-in CPU can control the temperature curve accurately
Adopts various kinds of method programs, one button operation, record the progress during the test
Built-in cleaning mode, easy to clean
Equip the dedicated cryostat and new special defrost system
Technical Parameters
Rated voltage: AC220V±10% ,50Hz
Power: 1800W
Test temperature: -10~-40℃
Cleaning temperature: 20~80℃
Accuracy: ±0.1℃
Test holes: 4
Ambient requirement Temperature: 5~40℃, Humidity≤85%
