Products used for treatment of water intended for human consumption. Powdered diatomaceous earth not-for-sale BS EN 4859 provides guidance

BS EN 4859 provides guidance on clamp load measurements on bolts

The FM sound transmitter is connected to a test load with an impedance expressed in return-loss relative to the nominal load impedance of the transmitter of not less than 26 dB at frequencies within the FM broadcasting band and 16 dB at frequencies of any measured unwanted frequency outside this band

as is most appropriate

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

BS EN 725-11 is applicable to pure oxides

Products used for treatment of water intended for human consumption. Powdered diatomaceous earth not-for-sale BS EN 4859 provides guidance1 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