AASHTO Designation: T 227-02 (2006} pdf free download

Standard Method of Test for

Density Relative Density (Specific Gravity) or API Gravity of Crude Petroleum and

Liquid Petroleum Products by Hydrometer Method

AASHTO Designation: T 227-02 (2006}

ASTM Designation: D 1298-99 (2005) except for the following provision:

1.Insert a note after Section 5.2 containing the following:

Note: This method may be used for the determination of the specific gravity of tars by use of an additional appropriate hydrometer.

Scope

I.I This test method covers the laboratory determination using a glass hydrometer, of the density, relative density (specificgravity), or API gravity of crude

petroleum,petroleum products, or mixtures of petroleum and nonpetroleum products normally handled as liquids, and having a Reid vapor pressure of 101.325 kPa

(14.696 psi) or less.

1.2 Values are measured on a hydrometer at either the reference temperature or at another convenient temperature, and readings corrected to the reference

temperature by means of the Petroleum Measurement Tables; values obtained at other than the reference temperature being hydrometer readings and not density

measurements.

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