$5.$ The ASTM distillation method provides insights into the $\_\_\_\_$ range of petroleum products, helping refine products like $\_\_\_\_$ and $\_\_\_\_.$

$6.$ True Boiling Point $($TBP$)$ distillation offers a detailed curve representing the boiling points of crude oil components, crucial for $\_\_\_\_$ optimization and determining $\_\_\_\_$ yields.

$7.$ Equilibrium Flash Vaporization $($EFV$)$ is used to simulate a $\_\_\_\_$ stage vaporization process of crude oil, providing data essential for $\_\_\_\_$ design and $\_\_\_\_$ management.

$8.$ Atmospheric distillation units operate at $\_\_\_\_$ pressure to separate crude oil into lighter fractions such as $\_\_\_\_$ and $\_\_\_\_,$ whereas vacuum distillation units process heavier fractions under $\_\_\_\_$ conditions.