Coblentz, C.
and Achenbach, P.
(1959),
Performance tests of two throw-away type "Dustgard" air filters ::manufactured by American Rock Wool Corporation Wabash, Indiana, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.RPT.6408
(Accessed December 3, 2024)