TY  - RPRT
TI  - Performance tests of two cleanable impingement air filters types ALH-1 and ALI-2 
AU  - Coblentz, Carl W
AU  - Achenbach, Paul R
PY  - 1959
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 6400
DO  - 10.6028/NBS.RPT.6400
ER  -