TY  - RPRT
TI  - Performance tests of a Smith "Lifetime" impingement type air filter 
AU  - Watson, Thomas W
AU  - Robinson, Henry E
PY  - 1958
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 5839
DO  - 10.6028/NBS.RPT.5839
ER  -