Nephelometric Turbidity Units -- a measure of the clarity of water Turbidity is measured with an instrument called a nephelometer, which measures the intensity of light scatted by suspended matter in the water Turbidity in excess of 5 NTU is just noticeable to the average person
Nephelometric Turbidity Unit The unit of measurement for turbidity Turbidity, which is a measure of the waters clarity, has no direct health effect, but indicates the overall quality of the water
Standard minimum size of a trading unit for a particular security--more commonly referred to as a "round lot" Stocks typically have a normal trading unit of 100 shares However, inactive stocks may have normal trading units equal to 10 shares Any amount of shares less than a round lot is called an "odd lot"
"Nephelometric Turbidity Unit" Unit used in water treatment for measurement at 90° as prescribed by the U S EPA (Environmental Protection Agency)