TY - RPRT TI - Reduction of hydrogen cyanide concentrations and acute inhalation toxicity from flexible polyurethane foam combustion products by the addition of copper compounds. Part III: the effect of copper additives on the flammability characteristics of flexible polyurethane foam AU - Levin, B C AU - Braun, E AU - Shields, J R AU - Lowe, D PY - 1990 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 4441 DO - 10.6028/NIST.IR.4441 ER -