EPA Method 8021B Internal Standard Back Catalog number: 19394 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C20018500 PCB No. 185, 10mg Price on request 51064 ASTM D-4815 Calibration Mix #1 Price on request 3305.19-K-IO Methyl octadecadienoate (9c,11tr) , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13058-52-1 Price on request