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.
atrioventricular (AV) node, an area of specialized cardiac muscle that receives the cardiac impulse from the sinoatrial (SA) node and conducts it to the bundle of His and thence to the Purkinje fibers and walls of the ventricles. The AV node is located in the septal wall between the left and right atria.