EPA Method 548 Analyte Back Catalog number: 30048 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673612 Fonofos, 100 µg/ml, Ethyl acetate, 5ml Price on request 1797.14-K-IO Di-n-heptyldisulfide, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 10496-16-9 Price on request 1801.24-100-T p-Quaterphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 135-70-6 Price on request