Final answer:
A burette is not required for determining total solids in a sample because it is a liquid dispensing system used for titrations, which is not a part of total solids analysis.
Step-by-step explanation:
The lab equipment that is NOT needed to determine the total solids in a sample is a Burette. A burette is specialized laboratory equipment used primarily in titrations to measure and dispense specific volumes of liquids accurately. The process of determining total solids typically involves weighing a known volume of sample, evaporating the water, and then re-weighing the dry residue. Therefore, the necessary equipment would include an Analytical balance to measure mass, an Evaporating dish to contain the sample while the water evaporates, and possibly a Muffle furnace to ensure complete drying. Since the measurement of volume is not a critical step in the determination of total solids, a burette is not required for this procedure.
Answer: A. Burette