Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66032 PCB No. 32, 100µg/ml in Isooctane, 1ml Price on request 94226 HPLC Standard Price on request 95403 Aroclor 1232 & Tetrachloro-m-xylene Price on request