EPA Method 507 - Internal Standard Back Catalog number: 19031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0700.13-500-IO 1,2,3-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 879-12-9 Price on request 79212 Decafluorobiphenyl Price on request A13875000AL-100 Fluxapyroxad, 100µg/mL in Acetonitrile, 1ml Price on request