TY - GEN AU - Andrew Persily AU - Robert E Chapman AU - Steven J Emmerich W Stuart Dols AU - Heather Davis Priya Lavappa AU - Amy Rishing C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2007-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.7379 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2007 TI - Building retrofits for increased protection against airborne chemical and biological releases: ER -