A drug analysis is performed with GC-MS and requires the use of standards. A commercial certified standard has a concentration of 2.500 µg/mL with a reported uncertainty of ± 2.0%. A stock solution is prepared by transferring 100.0 μL using a micropipette (uncertainty of ± 3.0%) of the standard to a 100.0 mL volumetric flask (uncertainty of ± 0.05 mL). Using the NUS portions of the NUSAP model, report the concentration of the diluted calibration solution in parts per million.