PCB No. 4, certified, 25mg Back Catalog number: C20000400 Availability: In the manufacturer's stock Price on request - + Recommended 92467 Internal Standard Price on request 95677 CLP - Pesticide Surrogate Spike Solution Price on request GA09000812AC EPA Method 608.3 DCB/TCMX Surrogate Mixture, 200µg/mL in Acetone, 1ml Price on request