TY  - RPRT
TI  - Performance test of the Blue Balance type automatic renewable filter media : supplied by Electro-Air Cleaner Company McKees Rocks, Pennsylvania
AU  - Coblentz, Carl W
PY  - 1962
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 7555
DO  - 10.6028/NBS.RPT.7555
ER  -