EPA Method 525 - Perchlorinates & Phthalates Back Catalog number: 30129 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3565.20-10MG 7,8,9,10-Tetrahydro-benzo[a]pyren-7-ol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 6272-55-5 Price on request 673229 Chloridazon, 100 µg/ml, Acetonitrile, 5ml Price on request S-4502-1-25IO Phosphorous Standards Phosphorus in Isooctane Tri-n-butylphosphate, 99+% (Chiron product nr. 1399.19) CAS [126-73-8] Matrix: Isooctane , 20cSt Units: 1x25mL, 1x100mL Isooctane Price on request