Gun Shot Residue Back Catalog number: 53326 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended ULM-7829-1.2 Parlar 50, 10µg/mL in nonane, 1,2ml Price on request 677612 Halosulfuron (free acid), 10mg Price on request I824635 Isopropyl Hydrogen Methylphosphonate, 500mg Price on request