EPA Method 8240A Matrix Spiking Standard Back Catalog number: 82410 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended HPCB-3004N 4-Hydroxy-2,2',5'-trichlorobiphenyl, 5mg Price on request 30032 EPA Method 525 - Fortification Solution Price on request ABTBECH TBECH Isomeric Solution/Mixture, 1.2ml, toluene Price on request