Transcription of Total dissolved solids in Drinking-water
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WHO/SDE/ onlyTotal dissolved solids in Drinking-waterBackground document for development ofWHO Guidelines for Drinking-water Quality_____Originally published in Guidelines for Drinking-water quality, 2nd ed. Vol. 2. Health criteria andother supporting information. World Health Organization, Geneva, 1996. World Health Organization 2003 All rights reserved. Publications of the World Health Organization can be obtained from Marketing andDissemination, World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland (tel: +4122 791 2476; fax: +41 22 791 4857; email: for permission to reproduce or translate WHO publications - whether for sale or fornoncommercial distribution - should be addressed to Publications, at the above address (fax: +41 22791 4806; email: designations employed and the presentation of the material in this publication do not imply theexpression of any opinion whatsoever on the part of the World Health Organization concerning thelegal status of a))
Total dissolved solids (TDS) is the term used to describe the inorganic salts and small amounts of organic matter present in solution in water. The principal constituents are usually calcium, magnesium, sodium, and potassium cations and carbonate, hydrogencarbonate, chloride, sulfate, and nitrate anions. Organoleptic properties
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