Multi-Element Check Standard Back Catalog number: 59001 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PCB-SS-A Mass-Labelled PCB Solution, 1.2ml x 1000ng/ml, nonane Price on request 0262.20-200-T Benzo[a]fluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 203-33-8 Price on request 3347.14-100-AN Coumaphos Price on request