Products used for treatment of water intended for human consumption. Powdered diatomaceous earth not-for-sale and which have fire resistance

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

BS EN 4859 provides guidance on clamp load measurements on bolts

BS 3731 on vee blocks is relevant to:

and plays back television programs on a television set by means of a cassette of magnetic tape

and to the testing of automatic electrical air flow

Products used for treatment of water intended for human consumption. Powdered diatomaceous earth not-for-sale and which have fire resistance1 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