ASTM D445-11a

    Historical Standard: ASTM D445-11a Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

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    ASTM D445

    1. Scope

    1.1 This test method specifies a procedure for the determination of the kinematic viscosity, ν, of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer. The dynamic viscosity, η, can be obtained by multiplying the kinematic viscosity, ν, by the density, ρ, of the liquid.

    Note 1—For the measurement of the kinematic viscosity and viscosity of bitumens, see also Test Methods D2170 and D2171.

    Note 2—ISO 3104 corresponds to Test Method D445.

    1.2 The result obtained from this test method is dependent upon the behavior of the sample and is intended for application to liquids for which primarily the shear stress and shear rates are proportional (Newtonian flow behavior). If, however, the viscosity varies significantly with the rate of shear, different results may be obtained from viscometers of different capillary diameters. The procedure and precision values for residual fuel oils, which under some conditions exhibit non-Newtonian behavior, have been included.

    1.3 The range of kinematic viscosities covered by this test method is from 0.2 to 300 000 mm2/s (see Table A1.1) at all temperatures (see 6.3 and 6.4). The precision has only been determined for those materials, kinematic viscosity ranges and temperatures as shown in the footnotes to the precision section.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D446 Specifications and Operating Instructions for Glass Capillary Kinematic Viscometers

    D1193 Specification for Reagent Water

    D1217 Test Method for Density and Relative Density (Specific Gravity) of Liquids by Bingham Pycnometer

    D1480 Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Bingham Pycnometer

    D1481 Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer

    D2162 Practice for Basic Calibration of Master Viscometers and Viscosity Oil Standards

    D2170 Test Method for Kinematic Viscosity of Asphalts (Bitumens)

    D2171 Test Method for Viscosity of Asphalts by Vacuum Capillary Viscometer

    D6071 Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy

    D6074 Guide for Characterizing Hydrocarbon Lubricant Base Oils

    D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance

    D6617 Practice for Laboratory Bias Detection Using Single Test Result from Standard Material

    E1 Specification for ASTM Liquid-in-Glass Thermometers

    E77 Test Method for Inspection and Verification of Thermometers

    E1137/E1137M Specification for Industrial Platinum Resistance Thermometers

    ISO Standards

    ISO17025 General Requirements for the Competence of Testing and Calibration Laboratories

    NIST Standards

    NISTSpecialPublicati Guide for the Use of the International System of Units (SI) http://www.nist.gov/pml/pubs/sp811/index.cfm


    ICS Code

    ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity); 75.080 (Petroleum products in general)

    UNSPSC Code

    UNSPSC Code 15101500(Petroleum and distillates)


    DOI: 10.1520/D0445-11A

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