Spiking Standard 4 Back Catalog number: 58651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70019R Aroclor 1248 Price on request MPCB-MXB Native Chlorinated Methoxybiphenyl Solution/Mixture, 1.2ml, nonane Price on request 0218.17-200-T 11H-Benzo[b]fluorene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 243-17-4 Price on request