TY  - RPRT
TI  - Fire safety study of air ducts and fire dampers effect of hangar spacing, hangar size, and wall thickness: first progress report
AU  - Issen, Lionel A
PY  - 1971
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 10482
DO  - 10.6028/NBS.RPT.10482
ER  -