PSA-C18-Mix 4 Back Catalog number: 674493 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1299.5-K-ME n-Pentane, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 109-66-0 Price on request PCB-SCS-H Mass-Labelled PCB Cleanup/Sampling Standards, 1.2ml, nonane Price on request 10103 Chlorinated Pesticides Standard Price on request