EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71415 Bromodichloroacetic acid Price on request 98307 EPA Method 525 Pesticide Standard Sub Conc Price on request 3913.28-100-HXX5 Campesterol, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-5, Cas.no. 474-62-4 Price on request