Table 2.

Decontamination Effcacy^a Synopsis for Sporicidal Gases^b Tested under Select Conditions and Materials^c

^aEffcacy: Green horizontal lines, LR ≥ 6 or complete inactivation; Orange trellis, 6 > LR ≥ 3; Complete red fill, LR < 3; no fill, not tested; vertical, mixed results.

^bForm, Formaldehyde; MS, metam sodium; other sporicide abbreviations defined in abbreviations section.

^cGalv metal, galvanized metal; Grnt, granite; Al, aluminum; others as in Table 1.

^dConcentration in ppmv unless otherwise noted.

^eRH at ambient temperature (20−25 °C) unless otherwise noted; NR, RH and temp not reported but believed to be variable; UC, uncontrolled RH at ambient temp.

^fContact time in hours unless otherwise noted.

^gBaa, B. anthracis ames; Bg, B. globigii/atrophaeus; Bs, B. subtilis.

^hTopsoil tested at 2−4 h, 1 cm depth, using sterilized soil− see 2nd reference listed.

ⁱSoil is Baa, others are Ba NNR1d1.

^jDwell time of 20 min with total cycle time (conditioning, gassing, dwell) of ~2 h.

^kConcentration in mg/L air.

^lTemp of 37 °C.

^mTemp of 10 °C.

ⁿ160 μL of 42.5 wt % metam sodium applied to small amount of soil in Petri dish.