(Hcf-Hyp) An adjective describing a substance that will not burn in 95 ± 5 percent oxygen at pressures up to 3 Atmosphere Absolute (ATA) (44. 1 psia, 2280 mm Hg or 303. 975 kPa)
NFPA 99 Standard for Health Care Facilities, 2002 ed. https://law.resource.org/pub/us/cfr/ibr/004/nfpa.9 9.2005.pdf, (Std: Hlth Care Fcilty - Amer) {242 NFC}