Laboratory

1 Apparent viscosity at high temperature and high shear rate

This is our newest and most precise Tapered Bearing Simulator Viscometer by King Tannas, which determines apparent viscosity at a

high temperature and high shearrate (150°C, 100

°C, 80°C) according to the motor oil standards SAE J300: ASTM D4683, ASTM D6616, CEC L-36-A90, IP 370. It may also be used to determine viscosity of hydraulic fluids, transmission and gear fluids, printing inks...

2 Apparent viscosity and yield stress at low temperatures

The latest King Tannas Mini Rotor Viscometer automatically determines apparent viscosity and yield stress at low temperatures (O°C to-40°C) according to the motor oil standards SAE J300: ASTM D3829, ASTM D4684, ASTM D6821. Alternatively, we are able to adjust the procedure of cooling for other fluids as per your request.

3 Dynamic viscosity at low temperatures (Brookfield viscosimeter)

Visco QCTM 300 Anton Paar is our newest Brookfield viscosimeter to determine the dynamic viscosity of non­Newtonian fluids at low temperatures. Standard determines the parameters for gear oils,although we can measure the viscosity of any fluid in the temperature range of 20°C to -70°C. The instrument supports standards: ASTM D2983, ISO 2555, ASTM D1084, ASTM D1824, ASTM D2196,...

4 Four-ball method

Determination of the weld point occurs at certain pressure within 10 seconds. Then upper steel ball rotates under the pressure on the lower 3, which are fixed in the lubricant. The result is given in kg at which the 4 balls welded together.The Load-Wear Index is determined by the size of wear on the bottom 3 balls. The pressure, time and temperature are adjusted according to the specific environment in which the lubricant is used.The instrument is designed to work according to the ASTM D2596 and D2266 with a pressure of 7kg to 1.200kg and between24°C and 100°C.

5 Cooling characteristics of quenching oils

A probe with an internal thermometer, preheated to 850°C, is inserted into a quenching oil sample, which may also be preheated and, if required, stirred during the test. This

direct method according to ISO 9950 gives a report as a cooling curve diagram, from which the cooling time and the cooling speed may be read and calculated.

6 Level of oil contamination by solid particles

Code defining the quantity and the size of solid particles in a hydraulic fluid is obtained by an Automatic Optical Particle Counter. The counter has a source of white light aiming, through a running sample, atareader. The reader detects changes in intensity and transforms them into information about the size and number of solid parts. The results are reported according to ISO 4406, NAS 1638 and SAE AS 4059.