Armstrong Ceiling Tile,24 in L,24 in W,PK12 3114EPB

30-Year Limited System Warranty Against Visible Sag, Mold/Mildew, and Bacterial Growth, Durable Material Fiberglass Color White Standards ANSI/ASHRAE/USGBC/IES Standard 189, ASTM E1264 Classification Type IV, Form 2, Pattern E, ASTM E84, California Department of Public Health CDPH/EHLB/Standard Method Version 1.2, 2017, CAN/ULC S102, GREENGUARD Gold Certified, USDA/FSIS Application School/Classrooms, Healthcare, Hospitality, Offices Series Optima Health Zone