logo

Standards Manage Your Business

We Manage Your Standards

ASTM

ASTM D4741 : 12

Standard Test Method for Measuring Viscosity at High Temperature and High Shear Rate by Tapered-Plug Viscometer

Standard Details

1.1 This test method2 covers the laboratory determination of the viscosity of oils at 150°C and 1 × 106s–1 and at 100°C and 1 × 10 6s–1, using high shear rate tapered-plug viscometer models BE/C or BS/C.

1.2 Newtonian calibration oils are used to adjust the working gap and for calibration of the apparatus. These calibration oils cover a range from approximately 1.8 to 5.9 mPa-s (cP) at 150°C and 4.2 to 18.9 mPa-s (cP) at 100°C. This test method should not be used for extrapolation to higher viscosities than those of the Newtonian calibration oils used for calibration of the apparatus. If it is so used, the precision statement will no longer apply.

1.3 A non-Newtonian reference oil is used to check that the working conditions are correct. The exact viscosity appropriate to each batch of this oil is established by testing on a number of instruments in different laboratories. The agreed value for this reference oil may be obtained from the chairman of the Coordinating European Council (CEC) Surveillance Group for CEC L-36-A90, or from the distributor.

1.4 Applicability to products other than engine oils has not been determined in preparing this test method.

1.5 This test method uses the millipascal seconds, mPa-s, as the unit of viscosity. For information, the equivalent cgs unit, centipoise, cP, is shown in parentheses.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status : Historical
Standard Type: Main
Document No: ASTM D4741 : 12
Document Year: 2012
Pages: 6
  • Section Volume:
  • 05.02 Volume 05.02 Petroleum Products, Liquid Fuels, and Lubricants (II): D3711-D6122
  • ICS:
  • 75.100 Lubricants, industrial oils and related products

Life Cycle

Historical

Currently Viewing

Historical
ASTM D4741 : 12

Historical

Historical
Knowledge Corner

Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information!

© Copyright 2024 BSB Edge Private Limited.

Enquire now +