UOP816-80

    Refractive Index of Hydrocarbon Liquids

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    1. Scope

    This method is for determining the refractive index, accurate to one unit in the fourth decimal place, of transparent and light-colored hydrocarbon liquids in the range of 1.33 to 1.60 at a temeperature of 20 C. This method is not applicable to liquids having colors darker than ASTM Color No. 4 (see ASTM Method D 1500) or to liquids having bubble points so near the test temperature that a reading cannot be obtained before substantial weathering takes place.


    Citing ASTM Standards
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