Early-onset bacterial infections in the newborn may occur when the mother has abnormal bacterial colonization of the urogenital tract, an ascending but silent amniotic fluid infection, or symptomatic chorioamnionitis. Thus, the physician cannot assume that maternal signs and symptoms will identify all infected infants.
Posted on: April 4th, 2013. NFPA 80 provides requirements for the installation, inspection, testing, and maintenance of fire doors and other protective structures, including fire windows, glass block assemblies, fabric fire safety curtains, and fire dampers.
Dynamic fire dampers have been tested for closure under air-flow and carry both an airflow velocity (fpm) and pressure differential rating. The minimum rating for all dynamic fire dampers is 2,000 fpm and 4.0 in. wg. The minimum ratings are based upon closure at a minimum airflow of 2,400 fpm and 4.5 in. wg.