EPA Method 507/525 Analyte Mix #6 Back Catalog number: 30087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C0224 5-Chloro-2-nitrobenzoic Acid, >98%, 25g Price on request HPCB-3004N 4-Hydroxy-2,2',5'-trichlorobiphenyl, 5mg Price on request 11762.12-100-IO 2,2',3,4,4',5,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request