EPA Method 507 Surrogate Standard Back Catalog number: 19049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71227 p-Terphenyl, 1000µg/ml in MethyleneChloride, 1ml Price on request 674553 Picolinafen free acid, 10mg Price on request 40316 Anthracene Price on request