…during a higher-level review or appeal to the Board of Veterans' Appeals. Those events reopen the record and any evidence previously submitted to the agency of original jurisdiction or associated with the claims file while the record was closed will become part of the evidentiary…

… per kilogram Biological Tissue None None Wet None Recoverable None Not checked 19349 PCB 169, tissue, wet weight ug/kg OPC PCB congener 169, biota, tissue, recoverable, wet weight, micrograms per kilogram Biological Tissue None None Wet None Recoverable None Not checked 19350 PC…