DIN 50930-6:2013 Corrosion of metals - Corrosion of metallic materials under corrosion load by water inside of pipes, tanks and apparatus - Part 6: Evaluation process and requirements regarding the hygienic suitability in contact with drinking water
DIN EN 12903:2009 Products used for the treatment of water intended for human consumption - Powdered activated carbon; English version of DIN EN 12903:2009-07
DIN EN 12913:2013 Products used for treatment of water intended for human consumption.Powdered diatomaceous earth; German version EN 12913:2012
DIN EN 12914:2013 Products used for treatment of water intended for human consumption.Powdered perlite; German version EN 12914:2012
DIN EN 15799:2010 Products used for treatment of swimming pool water - Powdered activated carbon; German version EN 15799:2010
DIN EN 1717:2011 Protection against pollution of potable water installations and general requirements of devices to prevent pollution by backflow; German version EN 1717:2000; Technical rule of the DVGW