ASTM D88 standard test method for Saybolt viscosity
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 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 SI units are to be regarded as the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D93 Test Methods for Flash Point by Pensky-Martens Closed Tester
D117 Guide to Test Methods and Specifications for Electrical Insulating Oils of Petroleum Origin
D140 Practice for Sampling Bituminous Materials
D244 Test Methods for Emulsified Asphalts
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)
D2161 Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity
D2170 Test Method for Kinematic Viscosity of Asphalts (Bitumens)
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
E 1 Specification for ASTM Thermometers
E 11 Specification for Wire-Cloth Sieves for Testing Purposes
E 102 Test Method for Saybolt Furol Viscosity of Bituminous Materials at High Temperatures
3. Terminology
3.1 Definitions:
3.1.1 Furol - an acronym of "Fuel and road 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 calibrated Universal orifice under specified conditions. The viscosity value is reported in Saybolt Universal seconds, abbreviated SUS, at a specified temperature.
