1. VGB standard, Guidelines for Feed Water, Boiler Water and Steam Quality for Power Plants/Industrial Plants, 3rd ed., instruction sheet VGB-S-010-T-00;2011–12.DE. VGB PowerTech Service GmbH, Essen, 2011, p. 116.
2. H. Schley, A. Markert, Reverse osmosis as part of the makeup water treatment in the Lippendorf Power Station, in: Proceedings of the Zittau Power Plant Symposium “Application of ion exchange and membrane techniques to makeup boiler water treatment in power plants”, October, Oybin, 2004, pp. 16–17.