Pin-Indexed Safety System
safety system[sāf´te sis´tem]
a system designed to minimize hazards due to human error; in respiratory therapy it is a system of connections designed to help prevent accidental interchanging of incorrect equipment or gases.
American Standard Safety System a system of specifications for threaded high-pressure connections between compressed gas cylinders and their attachments.
Diameter-Indexed Safety System a system of specifications for threaded low-pressure connections between station outlets, flowmeters, and other devices such as nebulizers, ventilators, and anesthesia apparatus.
Pin-Indexed Safety System a subsection of the American Standard Safety system that applies only to valve outlets of small cylinders and employs a joke and pin connection.