Derived at 165 points in 2001. Also given by EuroGeographics as RT90 to ETRS89 using the Position Vector transformation method. Replaces RT90 to ETRS89 (1) (code 1437). May be taken as approximate transformation RT90 to WGS 84 - see code 1896.
National Land Survey of Sweden (http://www.lantmateriet.se/) via EuroGeographics; http://crs.bkg.bund.de/crs-eu/