EPA Method 624 Surrogate Standard Back Catalog number: 19112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680365 Benzylbenzoate, 100 µg/ml, Acetonitrile, 1ml Price on request 66089 2,2’,3,4,6’-Pentachlorobiphenyl (89) Price on request 70697 Fonofos Price on request