A reduced pressure zone device is tested with a device called a differential gauge. This gauge uses hoses attached to the various test cocks of the RPZD and checks to be certain that the check valve springs as well as the relief valve spring are not fouled and are working properly.
The adjective AVUNCULAR has 2 senses: 1. being or relating to an uncle. 2. like an uncle in kindness or indulgence. Familiarity information: AVUNCULAR used as an adjective is rare.
Glossary of Terms. Atrioventricular (AV) Node Also known as the Aschoff-Tawara node, the AV node is a group of specialized cardiac muscle fibers located at the center of the heart, in the floor of the right atrium, between the atria and ventricles.