ASTM-D7110:2011 Edition

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D7110-05a(2011) Standard Test Method for Determining the Viscosity-Temperature Relationship of Used and Soot-Containing Engine Oils at Low Temperatures

Published By	Publication Date	Number of Pages
ASTM	2011	7

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Description

ASTM D7110-05a-Reapproved2011

Historical Standard: Standard Test Method for Determining the Viscosity-Temperature Relationship of Used and Soot-Containing Engine Oils at Low Temperatures

ASTM D7110

Scope

1.1 This test method covers how to measure the apparent viscosity of used and soot-containing engine oils at low temperatures.

1.2 A shear rate of approximately 0.2 s^-1 is produced at shear stresses below 200 Pa. Apparent viscosity is measured continuously as the sample is cooled at a rate of 3°C per hour over the range of −5 to −40°C.

1.3 The measurements resulting from this test method are viscosity, the maximum rate of viscosity increase (Gelation Index) and the temperature at which the Gelation Index occurs.

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

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.

Keywords

borderline pumping temperature; critical pumpability temperature; critical pumpability viscosity; engine oil; gelation; Gelation Index; Gelation Index Temperature; low-temperature engine oil pumpability; low-temperature rheology; Scanning Brookfield technique; sooted oils; temperature-scanning technique; used oils; viscosity; ICP-AES (inductively-coupled plasma atomic emission spectrometry); Middle distillate fuels; Scanning Brookfield technique; Viscosity; Borderline pumping temperature (BPT); Critical pumpability viscosity; Engine (lubricating) oils; Gelation

ICS Code

ICS Number Code 75.100 (Lubricants, industrial oils and related products)

DOI: 10.1520/D7110-05AR11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	FIG. 1
3	Summary of Test Method Significance and Use Apparatus
4	Materials Sampling Preparation of Apparatus Preparation for Calibration of Cells and Testing of Samples TABLE 1
5	Calibration of the Test Cell Preparation for Analysis of the Test Oil Procedure for Testing Samples TABLE 2
6	Report Precision and Bias
7	Keywords

Additional information

Standard Title	D7110-05a(2011) Standard Test Method for Determining the Viscosity-Temperature Relationship of Used and Soot-Containing Engine Oils at Low Temperatures
Published Code	ASTM
Publication Date	2011
Pages Count	7