Barrier Layer : The layer of garment material, glove material, footwear material, or face protection device material designated as providing blood and body fluid-borne pathogen resistance
NFPA 1999 Standard on Protective Clothing for Emergency Medical Operations, 2003 ed. http://www.nfpa.org/Assets/files/AboutTheCodes/199 9/ProposedTIA1169_NFPA1999.pdf, (Std: Prot Clothing for Emr Med Opr - Amer) {439 NFC}