EPA Method 502.2 Surrogate Standard Back Catalog number: 91704 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2803.21-100MG Stanozolol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 10418-03-8 Price on request 0216.26-10UG Dibenzo[g,p]chrysene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 191-68-4 Price on request 677532 Benz[a]anthracene, 20mg Price on request