A manufacturer of ceiling tiles was developing a line of microbial (mold) resistant tiles and needed a 3rd-party independent lab to test various formulations of the tile. EMSL was able to offer ASTM D3273 testing for the materials. ASTM D3273 is a standard test method to determine the resistance of mold on the surface of materials using an environmental chamber. Based on EMSL's results the client was able to pinpoint the most effective formulation of the tile to pursue for production and marketing.