Free standing hand sinks include tubular steel legs or a pedestal on which the sink sits. They are the simplest type to install, but you will need to consider the faucet center, whether the faucet is actually included and the drain outlet size when looking for a model. Most free standing hand sinks come with a faucet, but you will want to double check the model you select, just to make sure. Also, the faucet center indicates how far apart the incoming water lines need to be. For these small free standing sinks, the water lines usually need to be four inches apart. The drain opening diameter indicates how large the drain pipe needs to be (usually 1 ½” or 2”).
As far as freestanding stainless steel sink placement goes, that is mostly determined by your local health department. Generally speaking, each area of your kitchen needs to have at least one sink easily accessible for employee hand washing. Employees must wash their hands whenever switching between tasks (going from handling money to handling food for example), whenever they come back from a break, before putting on gloves and after taking them off and when their hands become excessively dirty when performing a given task.
A benefit of free standing hand sinks is that they are, by design, accessible sinks for handicapped people. Most free standing sinks are taller than 29” height requirement and shorter than the 34” height limit. Operations requiring hand sinks vary in shape, size and layout, so the need may arise to have an accessible sink that cannot be mounted to the wall. Those types of situations are where a freestanding stainless steel hand sink would come in handy.