The LaMotte 0835 turbidity column is a tube used for visual measurements of water turbidity. It holds 50mL of water and measures in Jackson Turbidity Units (JTU) as low as 5 JTU. A second column is required for comparison with a known amount of turbidity. This column is used to test ambient water to meet government quality standards.

Turbidity meters (also called turbidimeters) determine the concentration of solids in a sample of liquid (usually water). Turbidity is the cloudiness of a liquid caused by the presence of suspended solids (particles) that may include microorganisms, yeast, or sediment. Turbidity meters indirectly determine the concentration of these solids by measuring the light scattered by particles in the sample. Turbidity meters are commonly used to test drinking water, environmental water, and water used for food and beverages for compliance with government standards.

LaMotte manufactures analytical reagents, portable water testing instrumentation, and microbiological testing products. The company, founded in 1919, is headquartered in Chestertown, MD.