Fiber Guyz 3rd Party Certification Testing is a quality control process that allows us (a third party) to test for any discrepancies and issues in your structured cabling (Fiber/Cat6) that may pose a risk to your network infrastructure. Third party testing also seeks to verify that your cabling complies with the standards and specifications of fiber optic and cat 6. Although companies can run their own QC processes in-house, third party product testing is crucial in that it provides unbiased information from an outside source.