Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4036-0-IOX5 3-Chlorothiophene in isooctane, Blank Units: 5x1mL ampoules Price on request 20036 CLP Pesticide Mix “A”, in HE:TO [1:1], 1ml Price on request 94496 Massachusetts APH Standard Price on request