EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2895.12-100-IO 2,2',3,4,4',5-Hexachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 35694-06-5 Price on request 676405 Sulfoxaflor, 10mg Price on request M251612 2-Mercapto-4,5,6,7-d4-benzimidazole, 5mg Price on request