EPA Method 507/525 Analyte Mix #6 Back Catalog number: 30087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676604 1-Phenyl-1H-1,2,4-triazole, 10mg Price on request 70228 Nitrobenzene, 1000µg/ml in MeOH, 1ml Price on request 679596 Promazine hydrochloride, 100mg Price on request