EPA Method 624 Surrogate Standard Back Catalog number: 19112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3685.20-K-IO 3-n-Hexadecylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 119269-24-8 Price on request 2007.12-100-IO 3,4,4',5-Tetrachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 70362-50-4 Price on request DISAMPAP Sodium bis-[2-(N-ethylperfluorooctane-1-sulfonamido)ethyl] phosphate, 1.2ml x 50ug/ml, methanol Price on request