This European Standard is applicable to powdered perlite used for treatment of water intended for human consumption. It describes the characteristics of powdered perlite and specifies the requirements and the corresponding test methods for powdered perlite and gives information on its use in water treatment.
DIN EN 12914:2006 history
2013DIN EN 12914:2013 Products used for treatment of water intended for human consumption.Powdered perlite; German version EN 12914:2012
2006DIN EN 12914:2006 Products used for treatment of water intended for human consumption - Powdered perlite; English version of DIN EN 12914:2006