PCB Congener Surrogate Standard Mix Back Catalog number: 94568 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53141 EPA 1620 Standard 3 Price on request 677113 D7-Propranolol hydrochloride, 10mg Price on request 682069 o-Toluidine, 100 µg/ml, Methanol, 5ml Price on request