EPA Method 8315 Calibration Mix #1 Back Catalog number: 83509 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681068 Atenolol, 100 µg/ml, Methanol, 1ml Price on request 1078.19-K-IO n-Tridecylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 123-02-4 Price on request 57145 Discontinued Price on request