EPA Method 8141/1657 Surrogate Standard Back Catalog number: 92357 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675494 Bromacil, 250mg Price on request 96175 Caffeine Price on request 8755.0-1G Melamine micronized, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. Price on request