EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59293 Graphite Furnace Standard Price on request 1626.8-10MG Ethyl-ß-D-6-glucuronide, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 17685-04-0 Price on request 71751 o-Benzyl-p-chlorophenol Price on request