2005/12/15 · FOR IMMEDIATE RELEASE: Thursday, December 15, 2005 FOR FURTHER INFORMATION: Rich Sheffer (952) 887-3753 IVYLAND, PA Dec. 15, 2005 Donaldson Company, Inc. (NYSE:DCI) today announced that its plant in Ivyland, Pennsylvania had received its ISO 9001:2000 Certification. The plant, a 60,000 square foot facility in the Philadelphia metropolitan area, produces Donaldson's expanded PTFE membranes