ASTM D5481 Apparent Viscosity At High Temperature And High Shear Rate By Multicell Capillary Viscometer HTHS

KN-5481 High-Temperature and High-Shear Rate Apparent Viscosity Tester (HTHS) 

Overview

KN-5481 High-Temperature and High-Shear Rate Apparent Viscosity Tester (HTHS) conforms to ASTM D5481 Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer, it covers the laboratory determination of high-temperature high-shear (HTHS) viscosity of engine oil at a temperature of 150℃ using a multicell capillary viscometer containing pressure, temperature, and timing instrumentation. The shear rate for this test method corresponds to an apparent shear rate at the wall of 1.4 million reciprocal seconds (1.4 3 106s-1).This shear rate has been found to decrease the discrepancy between this test method and other high temperature high-shear test methods used for engine oil specifications. Viscosities are determined directly from calibrations that have been established with Newtonian oils with viscosities from 2 to 5 mPa-s at 150℃.

Features

1. Touch screen operation, built-in standard computer calculation program, easy to operation

2. Imported needle valve, full time safe pressure detecting system

3. One button to start the test, easy and convenient to operate

Technical Parameters

1. Applicable standard: ASTM D5481

2. Temperature control method: Electrical heating bar

3. Temperature control range: Ambient-150℃±0.1℃

4. Capillary tube dimension: φ0.15*18mm

5. Power: 700W

6. Pressure oxygen source: Oxygen， CO2

7. Dimension: 360*450*630mm, 40kg