Gun Shot Residue Back Catalog number: 53326 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9152 N-Nitrosodi-n-propylamine Price on request BDE-47 2,2',4,4'-Tetrabromodiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 54529 EPA Method 300.0 Eluent 100 x Concentrate Price on request