ASTM D88 / D88M - 07(2019)e1

    Standard Test Method for Saybolt Viscosity

    Active Standard ASTM D88 / D88M | Developed by Subcommittee: D08.05

    Book of Standards Volume: 04.04


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    Significance and Use

    5.1 This test method is useful in characterizing certain petroleum products, as one element in establishing uniformity of shipments and sources of supply.

    5.2 See Guide D117 for applicability to mineral oils used as electrical insulating oils.

    5.3 The Saybolt Furol viscosity is approximately one tenth the Saybolt Universal viscosity, and is recommended for characterization of petroleum products such as fuel oils and other residual materials having Saybolt Universal viscosities greater than 1000 s.

    5.4 Determination of the Saybolt Furol viscosity of bituminous materials at higher temperatures is covered by Test Method E102/E102M.

    1. Scope

    1.1 This test method covers the empirical procedures for determining the Saybolt Universal or Saybolt Furol viscosities of petroleum products at specified temperatures between 21 and 99°C [70 and 210°F]. A special procedure for waxy products is indicated.

    Note 1: Test Methods D445 and D2170/D2170M are preferred for the determination of kinematic viscosity. They require smaller samples and less time, and provide greater accuracy. Kinematic viscosities may be converted to Saybolt viscosities by use of the tables in Practice D2161. It is recommended that viscosity indexes be calculated from kinematic rather than Saybolt viscosities.

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

    1.3 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.

    1.4 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.


    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

    D93 Test Methods for Flash Point by Pensky-Martens Closed Cup Tester

    D117 Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids

    D140/D140M Practice for Sampling Asphalt Materials

    D244 Test Methods and Practices for Emulsified Asphalts

    D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

    D2161 Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity

    D2170/D2170M Test Method for Kinematic Viscosity of Asphalts

    D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

    D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products

    E1 Specification for ASTM Liquid-in-Glass Thermometers

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

    E102/E102M Test Method for Saybolt Furol Viscosity of Bituminous Materials at High Temperatures


    ICS Code

    ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity)

    Referencing This Standard
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    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D0088_D0088M-07R19E01

    Citation Format

    ASTM D88 / D88M-07(2019)e1, Standard Test Method for Saybolt Viscosity, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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