EPA Method 525 - PAH Standard Back Catalog number: 19362 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 1993.10-50-IO 1-Chloronaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 90-13-1 Price on request 676583 Hydrochlorothiazide, 100mg Price on request 678084 Chlorpyrifos-methyl, 100 µg/ml, Acetonitrile, 1m Price on request