Interference Standard Mix 2 Back Catalog number: 52040 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79419 1-Methylaphthalene Price on request 0053.17-200-T Benzo[b]fluoren-11-one, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3074-03-1 Price on request 79247 EPA Method 8330 Analyte Price on request