INTERIM REPORT THE MEASUREMENT OF STATIC PRESSURE AND AIR FLOW WITH A MODIFIED EIR5 ANTIBACKDRAFT VALVE(U)

摘要

The object of project 4-80-12-005 is to develop improved equip-ment and methods for the collective protection in permanent structures and vital military establishments.nThe object of work described in this report was t devise simple methods of determining the pressure drop static pressure in shelter across the ElR5 antibackdraft valve and the rate of air flow through it.