ASTM D-4815 Calibration Mix #2A Back Catalog number: 51214 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0474.18-200-T 2,3,9,10-Tetramethylantracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 66552-77-0 Price on request 30003 EPA Method 500 Series Internal Std #4 Price on request 674697 MCPA, 250mg Price on request