EPA Method 515.3 - Underivatized acids Back Catalog number: 30150 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C2377 6-Chloro-3(2H)-pyridazinone, >98%, 25g Price on request 9756.17-100-IO n-Butyl iso-pentyl phthalate (n-Butyl 3-methylbutyl phthalate), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 144648-76-0 Price on request 1724.16-200-T 1,2,3,10b-Tetrahydrofluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 20279-21-4 Price on request