Template Phoenix National Laboratories, Inc. Share: Testing Laboratories Visit Website Request Info 2837 E. Chambers St. Phoenix, AZ 85040-3736 (602) 431-8887 (602) 431-8889 (fax) About Map About We are an independent testing and inspection laboratory specializing in nondestructive and destructive testing disciplines for the construction, power generation, manufacturing and aerospace industries. What's Nearby? Distance: 5 10 15 20 25 50 mi.