Calibration Verification Solution , 1ml, nonane Back Catalog number: EPA-1613CS3 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 2658.12-100-IO 3'-Fluoro-3,4,4'-trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 3237.21-K-IO 12-cis-Heneicosenoic acid , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3515-84-2 Price on request 674492 PSA-C18-Mix 6 Price on request