The Department of Defense, specifically the Department of the Navy, is seeking contractors for the calibration of Verdantas Mag Meters at the NSWC Philadelphia Division in Pennsylvania. This presolicitation opportunity involves testing laboratory services under the NAICS code 541380, focusing on quality control measuring tools as indicated by the PSC code H152. The calibration services are critical for ensuring the accuracy and reliability of measurement tools used in various defense applications. Interested parties can reach out to Frank R. Vennell at frank.vennell@navy.mil or by phone at 215-897-1337 for further details regarding the procurement process.