Under what condition may a water closet be installed without a lavatory in the same room?

The installation of a water closet without a lavatory in the same room is permitted specifically under conditions that prioritize health and hygiene practices. When a room is used exclusively to collect medical specimens, the focus is on maintaining a sterile environment necessary for medical procedures. In such cases, the immediate need is often for a toilet facility for personnel to use after handling specimens.

Having a lavatory might not be practical due to space constraints, the need for hygiene protocols, or the specific design of the facility. In these instances, the standards allow the installation of a water closet by itself as long as there are effective handwashing facilities nearby, thereby acknowledging the need for hygiene without necessarily having it within the same room.

This ensures that even if the lavatory is not physically present in the room, adequate handwashing capabilities can still be accessed to promote sanitary practices in a medical context, which is essential for both safety and compliance with health regulations.