EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0182.12-K-IO 4-Bromodibenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 97511-05-2 Price on request L-PFNS Sodium perfluoro-1-nonanesulfonate, 1.2ml x 50ug/ml, methanol Price on request 56201 Alternate Metals 2 Price on request