EPA Method 515.1 Internal Standard Back Catalog number: 30023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79067 2,3,6-Trichlorophenol Price on request 0458.17-K-IO 2,6,9-Trimethylphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 66271-32-7 Price on request 9718.3 Propandiamine-1,2-13C2, , Solvent-, Unit , # of units-, Cas.no. 108-13-4 (unlabelled) Price on request