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TDS - Total Dissolved Solids
An expression for the substances contained in a liquid which are present in a molecular, ionized or micro-granular suspended form. The operational definition is that the solids must be small enough to pass through a two microns filter. The term is used as an indirect reflection of water salinity. The term is also known as total filterable residue. (read more)
The cloudiness or haziness of a fluid caused by suspended solids particles that are generally invisible to the naked eye, similar to smoke in air.
The measurement of turbidity is a key test of water quality and it is measured by the amount of Light transmission through a water sample.(read more)