EPA Method 502.2 Surrogate Standard Back Catalog number: 91704 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D455140 3,5-Diiodo Thyroacetic Acid, 25mg Price on request 0095.6-1ML Thiophenol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 108-98-5 Price on request 3723.18-K-ME Sodium dodecylbenzenesulfonate, mixture of branched C10-C14, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 25155-30-0 Price on request