EPA Method 8040 - Surrogate Standard Mix Back Catalog number: 80413 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59362 Total Dissolved Solids Price on request 3777.7-K-IO 2-Ethyl-3-methylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 15707-23-0 Price on request 57847 Silver (Ag) Price on request