EPA Method 552.1 - Surrogate Standard Back Catalog number: 31056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52093 Trace Metals 2 Price on request 65270 Fermentation Standard, in water, 1ml Price on request 1049.14-K-T Anthracene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 120-12-7 Price on request