Gun Shot Residue Single Element Kit Back Catalog number: 52257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2516.16-100MG Acetylsalicylsalicylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 530-75-6 Price on request 50784 Mix #2 - Bromate (BrO3-) Price on request 679571 N-Acetyl AMPA, 25mg Price on request