72 Hours L.L.C. offers nondestructive testing services in the infrastructure, marine industrial and construction fields. Services Include: - American Welding Society Certified Welding Inspectors - CWIs - ASNT TC-1A Certified NDT Technicians in VT, MT, PT, RT and UT - On-site Inspections - On-site Welder Qualification and evaluation - On-site Welding Procedure Qualification - Welding Procedures - Evaluation of NDT systems and programs - Consultation of Quality programs