PSA-Mix 3 Back Catalog number: 674486 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 30004 EPA Method 500 Series Internal Standard #5 Price on request 79223 Prometryne Price on request 3321.6-100 delta-HCH (BHC), 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 319-86-8 Price on request