DIN EN 12913 E:2012 Draft Document - Products used for treatment of water intended for human consumption - Powdered diatomaceous earth; German version FprEN 12913:2012
2013DIN EN 12913:2013 Products used for treatment of water intended for human consumption.Powdered diatomaceous earth; German version EN 12913:2012
2006DIN EN 12913:2006 Products used for treatment of water intended for human consumption - Powdered diatomaceous earth; English version of DIN EN 12913:2006