True boiling point apparatus

Tnie-boiling-point Apparatus. This equipment is used to obtain a so-called true-boiling-point distillation curve (see Figs. 4-3 and 4-9). An equipment that accomplishes a good degree of fractionation is termi d true-boiling-point equipment. 

The reduced crude is then flashed under vacuum, distilling a clear lubricating oil stock and leaving solid tar. The lubricating oil stock can then be evaluated in the true-boiling apparatus. A true-boiling-point analysis of the crude oil is also necessary if the light stocks are to be evaluated. 

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