TY  - RPRT
TI  - Proposed standard practice for assessing the performance of gas-phase air cleaning equipment 
AU  - Silberstein, Samuel
PY  - 1991
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 4523
DO  - 10.6028/NIST.IR.4523
ER  -