AASHTO T72-10 pdf free download

AASHTO T72-10 pdf free download.Saybolt Viscosity.
SCOPE
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 2 10°F). A special procedure for waxy products is indicated.
Note 1—T 201 and ASTM D445 are preferred for the determination of kinematic viscosity. These methods require smaller samples and less time, and provide greater accuracy. Kinematic viscosities may be converted to Saybolt viscosities by use of the tables in ASTM D2161. It is recommended that viscosity indexes be calculated from kinematic rather than Saybolt viscosities.
The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all of the safrtv concerns, if anp, associated wit/i its use. It Lv the responsibility oft/ic user of this standard to estahlLvh appropriate safrtv and health practices and determine the applicability of regulatory limitations prior to use.
REFERENCED DOCUMENTS
AA SHTO Standards:
• R 66, Sampling Asphalt Materials
• T 59, Emulsified Asphalts
• T 201, Kinematic Viscosity of Asphalts (Biturnens)
2.2. ASTM Standards:
• Dl 17, Standard Guide for Sampling, Test Methods, and Specifications for Electrical
Insulating Oils of Petroleum Origin
• D445, Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids
(and Calculation of Dynamic Viscosity)
• D2 161, Standard Practice for Conversion of Kinematic Viscosity to Saybolt Universal
Viscosity or to Saybolt Furol Viscosity
• E 1, Standard Specification for ASTM Liquid-in-Glass Thermometers
• El 1, Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
• E102/E1O2M, Standard 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. Savbolt Furol viscosity—the corrected efilux time in seconds of 60 mL (2 oz) 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 (2 oz) 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.
4. SUMMARY OF TEST METHOD
4.1. The efflux time in seconds of 60 mL of sample, flowing through a calibrated orifice, is measured under carefully controlled conditions. This time is corrected by an orifice factor and reported as the viscosity of the sample at that temperature.
5. 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 ASTM Dl 17 for applicability to mineral oils used as electrical insulating oils.
5.3. The Saybolt Furol viscosity is approximately one tenth of 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 asphalt materials at higher temperatures is covered by ASTM E102/EIO2M.
6. APPARATUS
6.1. Savholt Viscomeler and Bath—as shown in Figure 1 and described in Annex A2.AASHTO T72-10 pdf download.