EPA Method 551.1 Internal Standard Back Catalog number: 30103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0711.10-10MG Naphthalene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 91-20-3 Price on request 679715 Descyclopropyldicyclanil, 10mg Price on request 9722.28-100-IO Octacosanoic acid, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-48-9 Price on request