EPA Method 525 Spike B Back Catalog number: 92313 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674330 Pentachloroaniline, 100mg Price on request 2253.7-5K-ME Toluene-d8, 5000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2037-26-5 Price on request 9403.16-100-ME Norfluoxetine-d5 (propyl-1,1,2,2,3-d5), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1185132-92-6 Price on request