Describe the experimental apparatus and procedures used in great detail. A clearly drawn
illustration is essential to help explain the setup (see discussion of Figures in the next section).
The equipment diagram can be a line (not necessarily 3-D) drawing. It need not be, and often
should not be, pictorial. Show equipment items, the flow of materials, and all control
(manipulated) valves and other important valves, such as inlet steam, cooling water, etc. on
your diagram. It is critical to identify all measurement points for temperatures, flow rates,
pressures, etc. and all sampling points. Neatness and professionalism, or their lack, are very
apparent here. Use French curves, straight edges, and templates, or preferably computer
software. Avoid freehand sketching unless absolutely necessary. Equipment diagrams should
be original work; they should not be supplied from a previous lab group's report.