ASTM D7279-20

Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids by Automated Houillon Viscometer

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STANDARD published on 1.11.2020

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The information about the standard:

Designation standards: ASTM D7279-20
Publication date standards: 1.11.2020
SKU: NS-1013166
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Measurement of volume, mass, density, viscosity Lubricants, industrial oils and related products

Annotation of standard text ASTM D7279-20 :

Keywords:

Houillon viscometer, kinematic viscosity, used oils,, ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity),75.100 (Lubricants, industrial oils and related products)

Additional information

Significance and Use

5.1?Many petroleum products and some non-petroleum products are used as lubricants in the equipment, and the correct operation of the equipment depends upon the appropriate viscosity of the lubricant being used. Additionally, the viscosity of many petroleum fuels is important for the estimation of optimum storage, handling, and operational conditions. Thus, the accurate determination of viscosity is essential to many product specifications.

5.2?The viscosity of used oils is a commonly determined parameter in the oil industry to assess the effect of engine wear on the lube oils used, as well as the degradation of the engine parts during operation.

5.3?The Houillon viscometer tube method offers automated determination of kinematic viscosity. Typically a sample volume of less than 1 mL is required for the analysis.

1. Scope

1.1?This test method covers the measurement of the kinematic viscosity of transparent and opaque liquids; such as base oils, formulated oils, diesel oil, biodiesel, biodiesel blends, residual fuel oils, marine fuels, and used lubricating oils using a Houillon viscometer in automated mode.

1.2?The range of kinematic viscosity capable of being measured by this test method is from 2 mm²/s to 2500 mm²/s (see Fig. 1). The range is dependent on the tube constant utilized. The temperature range that the apparatus is capable of achieving is between 20 ?C and 150 ?C, inclusive. However, the precision has only been determined for the viscosity range; 2 mm²/s to 478 mm²/s at 40 ?C for base oils, formulated oils, diesel oil, biodiesel, and biodiesel blends; 3 mm²/s to 106 mm²/s at 100 ?C for base oils and formulated oils; 25 mm²/s to 150 mm²/s at 40 ?C and 5 mm²/s to 16 mm²/s at 100 ?C for used lubricating oils; 25 mm²/s to 2500 mm²/s at 50 ?C and 6 mm²/s to 110 mm²/s at 100 ?C for residual fuels. As indicated for the materials listed in the precision section.

FIG. 1?Houillon Viscometer Typical Viscosity Range of Tube Constants

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

1.4?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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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2. Referenced Documents

D2162-21	Standard Practice for Basic Calibration of Master Viscometers and Viscosity Oil Standards
D445-23	Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D6299-23a	Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance (Includes all amendments and changes 12/12/2023).
ISO 5725	Accuracy (Trueness and Precision) of Measurement Methods and Results Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
NIST Technical Note 1297	Guideline for Evaluating and Expressing the Uncertainty of NIST Measurement Results Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
D4177-22e1	Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).
	General Requirements for the Competence of Testing and Calibration Laboratories
D6300-24	Standard Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products, Liquid Fuels, and Lubricants
D6708-24	Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
D6792-23c	Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories (Includes all amendments and changes 12/7/2023).
D4057-22	Standard Practice for Manual Sampling of Petroleum and Petroleum Products
E1137-97	Standard Specification for Industrial Platinum Resistance Thermometers

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