Products used for treatment of water intended for human consumption. Powdered diatomaceous earth not-for-sale BS EN 725-11 is applicable

BS EN 725-11 is applicable to pure oxides

and fragments of metal objects

and to the testing of automatic electrical air flow

and which have fire resistance (limited circuit integrity) in the event of fire

Products used for treatment of water intended for human consumption. Powdered diatomaceous earth not-for-sale BS EN 725-11 is applicable1 Scope This European Standard is applicable to powdered diatomaceous earth used for treatment of water intended for human consumption. It describes the characteristics of powdered diatomaceous earth and specifies the requirements and the corresponding test methods for powdered diatomaceous earth and gives information on its use in water treatment. It also determines the rules relating to safe handling and use of powdered diatomaceous earth (see Annex