This standard BS EN 13754:2009 Products used for treatment of water intended for human consumption. Bentonite is classified in these ICS categories:
71.100.80 Chemicals for purification of water
13.060.20 Drinking water
This European Standard is applicable to bentonite used for treatment of water intended for human consumption. It describes the characteristics of bentonite and specifies the requirements and the corresponding test methods for bentonite. It gives information on its use in water treatment.