EPA Method 509 Internal Standard Back Catalog number: 30097 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2753.14-1ML n-Octanophenone, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1674-37-9 Price on request 3329.12-100 Carbaryl, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 63-25-2 Price on request S-4019-SET Saturated Fraction GC Control Set (S-4012 + S-4020) Price on request