Internal & Surrogate Standard Back Catalog number: 97790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9432.21-100-AN trans-Permethrin (isomer mix) Price on request C20002800 PCB No. 28, certified, 10mg Price on request 680136 1,2,3,5-Tetrachlorobenzene, 100 µg/ml, Methanol, Price on request