EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11747.12-100-IO 2,2',3,4',6,6'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 679577 Picric acid, 100 µg/ml, Acetonitrile, 10ml Price on request 688005 Maltotetraose, 10mg Price on request