Mantle K.G.
Bibliographic info:
Heat. Vent. Eng. &. Jnl. of Air Cond. vol.31 no.371 p529-531

Describes test rig used to measure air leakage through a metal framed window. Gives average of results of leakage for different air pressure. Finds leakage rate of 20 cu. ft/h/ft for air velocity of 30 m.p.h. which was generally less than published results.