AccuStandard, Inc. The company is renowned for its recognition and speedy introduction of Standards to the market place. The company’s strong Synthesis Department allows the synthesis of important and unique products and product lines. Featured, also in its history of firsts, are all of the 209 congeners of polychlorinated biphenyls (PCBs) and all 209 congeners of Polybrominated diphenyl ethers (PBDEs) as well as many halogenated dioxins and dibenzofurans, PAHs and pesticides.