Acid Surrogate Standard Back Catalog number: 22005 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-234678-S 2,3,4,6,7,8-Hexachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request NIST-1566B Oyster Tissue (Trace elements,methyl mercury), 25g Price on request 679317 Carbophenothion-methyl, 100 µg/ml, Methanol, 1ml Price on request