Welcome to Cascade TEK - Environmental Testing Services, Reconditioned Test Chambers and Equipment, Lab Ovens and Vacuum Ovens, Environmental Testing Chambers Repair in Oregon Washington Idaho and California Environmental Testing Laboratory Our environmental stress testing laboratory is equipped with a full range of climatic and dynamic capabilities. We are experts in MIL-STD, DO-160, ISTA, SAE, IEC and ASTM requirements. View Our Testing Accreditations Reconditioned Lab Equipment See our online inventory of reconditioned test equipment. Rent, lease or purchase with flexible terms and 100% war