Turbidity
CLOUDINESS OF A FLUID
Turbid; Nephelometric Turbidity Unit; Nephelometric turbidity units; Formazin Turbitity Unit; Nephelometric Turbidity Units; Formazin Turbidity Unit; Turbidity unit
Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual 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.