EPA Method 8040 - Surrogate Standard Back Catalog number: 80403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0359.6-100MG 3-Ethylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1795-01-3 Price on request 677578 L-Leucine, 250mg Price on request 3317.12-100-AN Benthiocarb Price on request