EPA Method 8040 - Surrogate Standard Mix Back Catalog number: 80413 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8733.20-K-IO n-Butyl n-octyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 84-78-6 Price on request 2303.9-1G Azelaic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 123-99-9 Price on request 11711.12-100-IO 2,2',3,4,4'-Pentachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request