EPA Method 300.0 Anions Mix A Back Catalog number: 50623 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57239 Yttrium (Y) Price on request 79407 Benzo(k)fluoranthene Price on request 1530.13-K-IO Fluorene-d10, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81103-79-9 Price on request