A solution for potable water pipelines with a new standard in the renewal of pressure pipes was recently promoted by a marketing alliance between The Dow Chemical Company (NYSE: DOW) and RS Technik, a Switzerland-based company specializing in trenchless technology. The RS BlueLine¢ç technology is certified to NSF/ANSI 61, by NSF International, as well as German DVGW regulation W270 and the KTW for potable water that, like NSF, are the most rigorous standards in Europe.