EPA Method 8240A Matrix Spiking Standard Back Catalog number: 82410 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30121 EPA Method 515.1 - Performance Check Solution Price on request 2105.8-25MG 1,5-Bis-(1-methylethyl)-biguanide HCl, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 45095-69-0 Price on request 0051.14-10MG Phenanthrene-1,4-dione, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 569-15-3 Price on request