EPA Method 8121 Surrogate Standard Back Catalog number: 81204 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9490.20-K-IO 2-Ethylhexyldiphenyl phosphate,1000 µg/mL,isooctane,1mL Price on request 674995 PSA-GCB-Mix 11 Price on request 81421 Phorate Price on request