You can get a Plan Review by an architect at the Fire Marshalâs Office, and they have satellite offices all over the state.
Primary flow element. A primary flow element is the element of a flow meter that serves to indicate the quantity or velocity of flow. For example, in the case of an orifice flow meter, the differential pressure across the orifice plate is the primary flow element.
Peak expiratory flow rate (PEFR) A peak flow meter is a simple, inexpensive device which measures the highest flow of air out of the lungs, from peak inspiration, in a fast single forced breath out. This reflects airflow resistance, the elasticity of the supporting lung tissues and ease of breathing.