Quality Control Procedures for DUNE Field Cage

The Deep Underground Neutrino Experiment (DUNE) is a multinational high energy physics experiment with goals of studying neutrino oscillations, searching for proton decay, and low mass dark matter. Due to the complexity and scale of DUNE, a prototype (ProtoDUNE II) is being built to test aspects of the full detector design. The time projection chamber that is used to identify neutrino interactions will be suspended in 17,000 tons of liquid argon and requires a sturdy field cage to support it and provide a uniform electric field. A major element of the field cage consists of reinforced fiber plastics beams that undergo a series of tests to ensure proper function. In this talk we present details of this quality control process.