What is the maximum allowable manifold pressure for acetone?

The maximum allowable manifold pressure for acetone is 15 PSI, as acetone is a volatile organic compound that can pose risks when handled under pressure. It is crucial to maintain this pressure limit to prevent any dangerous situations such as vapor releases or potential combustion risks. Keeping the manifold pressure within the specified limit ensures safe operation and minimizes the risk of accidents commonly associated with the handling of flammable liquids.

The other options reflect higher pressures than what is safely allowed for acetone. Operating above the maximum limit can lead to increased risks related to over-pressurization, which is particularly concerning given acetone's flammability and volatility. Thus, adhering to the specified manifold pressure is not only important for safety but is also mandated by industry protocols.