EPA Method 8121 Analytes Back Catalog number: 83202 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8540.33-K-IO n-Heptacosylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request C12253700 7,9-Di-tert-butyl-1-oxaspiro[4,5]deca-6,9-die ne-2,8-dione, 25mg Price on request 11672.12-100-IO 2,2',6-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request