Astm

American Association State
Highway and Transportation Officials Standard
AASHTO No: T72
Method 304—Federal Test
Method Standard No. 791b
Replaces Method 4285 of Federal Test
Method Standard No. 141A

Designation: D 88 – 07

Standard Test Method for

Saybolt Viscosity1
This standard is issued under the fixed designation D 88; the number immediately following the designation indicatesthe year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (e) indicates an editorial change since the last revision or reapproval.

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

D 93 Test Methods for Flash Point by Pensky-Martens
Closed Cup Tester
D 117 Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Oils of Petroleum Origin
D 140 Practice for Sampling Bituminous Materials
D 244 Test Methods and Practices for EmulsifiedAsphalts
D 445 Test Method for Kinematic Viscosity of Transparent
and Opaque Liquids (and Calculation of Dynamic Viscosity)
D 2161 Practice for Conversion of Kinematic Viscosity to
Saybolt Universal Viscosity or to Saybolt Furol Viscosity
D 2170 Test Method for Kinematic Viscosity of Asphalts
(Bitumens)
D 4057 Practice for Manual Sampling of Petroleum and
Petroleum Products
D 4177 Practicefor Automatic Sampling of Petroleum and
Petroleum Products
E 1 Specification for ASTM Liquid-in-Glass Thermometers
E 11 Specification for Wire Cloth and Sieves for Testing
Purposes
E 102 Test Method for Saybolt Furol Viscosity of Bituminous Materials at High Temperatures

NOTE 1—Test Methods D 445 and D 2170 are preferred for the determination of kinematic viscosity. They require smallersamples and less
time, and provide greater accuracy. Kinematic viscosities may be converted to Saybolt viscosities by use of the tables in Practice D 2161. It is
recommended that viscosity indexes be calculated from kinematic rather
than Saybolt viscosities.

1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
1.3This 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.
2. Referenced Documents
2.1 ASTM Standards: 2

3. Terminology
3.1 Definitions:
3.1.1 Furol—an acronym of “Fuel androad oils.”
3.1.2 Saybolt Furol viscosity—the corrected efflux time in
seconds of 60 mL of sample flowing through a calibrated Furol
orifice under specified conditions. The viscosity value is
reported in Saybolt Furol seconds, abbreviated SFS, at a
specified temperature.
3.1.3 Saybolt Universal viscosity—the corrected efflux time
in seconds of 60 mL of sample flowing through a calibratedUniversal orifice under specified conditions. The viscosity

1
This test method is under the jurisdiction of ASTM Committee D08 on Roofing
and Waterproofing and is the direct responsibility of Subcommittee D08.05 on
Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.
Current edition approved Nov. 1, 2007. Published November 2007. Originally
approved in 1921. In 1923, combined withformer Methods D 47. Last previous
edition approved in 2005 as D 88 – 94 (2005).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.

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