He was testing a new "Organic Coating," a deep midnight-blue finish meant for industrial pipelines. For months, the team had tweaked the resin, hoping to achieve the perfect balance of hardness and flexibility. Today, they would find out if it met the standard: .
Arthur took a standardized steel panel, coated precisely to 3 mils, and slid it into the tester's base. He adjusted the guided weight—a four-pound steel indentor—to the 20-inch mark. astm-d2794