TY  - RPRT
TI  - Performance tests of cleanable impingement type air filters type EWA and type EWAP 
AU  - Robinson, Henry E
PY  - 1953
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 2699
DO  - 10.6028/NBS.RPT.2699
ER  -