During reconstruction or removal of a road surface, reclaimed asphalt pavement (RAP) is commonly obtained by milling or removing the. existing pavement. For this study, reclaimed asphalt pavement (RAP) is defined as all. asphalt road waste, large chunks or milled material, that has been size-reduced, making it. reusable as part of a new asphalt mixture. Reclaimed asphalt pavement has been successfully re-used and recycled for many.
Headset: The headset is the metal part of the stethoscope onto which the tubing is fitted. The headset is made up of the two eartubes, tension springs and the eartips. Chest Piece: The chest piece is the part of the stethoscope that is placed on the location where the user wants to hear sound. Most cardiology stethoscopes contain a tunable diaphragm on each side of the chest piece.
First, itâs very important to wear the stethoscope properly. All Littmann stethoscopes have headsets that are angled and are designed to fit properly with your ear canals. Hereâs the correct orientation: Hold the stethoscope with the eartubes vertical. When placing the eartips in your ears, be sure that the angled eartubes are pointing forward, toward your nose.