0
A nephelometer is an instrument for measuring suspended particulates in a liquid or gas colloid. It does so by employing a light beam (source beam) and a light detector set to one side (usually 90°) of the source beam. Particle density is then a function of the light reflected into the detector from the particles. To some extent, how much light reflects for a given density of particles is dependent upon properties of the particles such as their shape, color, and reflectivity. Therefore, establishing a working correlation between turbidity and suspended solids (a more useful, but typically more difficult quantification of particulates) must be established independently for each situation.
Because optical properties depend on suspended particle size, a stable synthetic material called "Formazin" with uniform particle size is often used as a standard for calibration and reproducibility. The unit is called Formazin Turbidity Units(FTU).
Nephelometric Turbidity Units (NTU) specified by United States Environmental Protection Agency is a special case of FTU, where a white light source and certain geometrical properties of the measurement apparatus are specified. (Sometimes the alternate form "nephelos turbidity units" is used.)
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What does area units measure?
Area is measured in square units.
What are 2 units that scientist use to measure temperature?
To measure temperature, scientists use:KelvinCelsiusFahrenheit.
If ad is 10 units and ab is 8 units what is the measure of dc?
8
What are to units that scientists use to measure temperature?
To measure temperature, scientists use:KelvinCelsiusFahrenheit.
How many units are there in a measure of whiskey?
anwser me then:/
What is square units measure?
Square units measure area.
What is the measure of the number of units square?
Area is a measure of square units.
What is a nephelometer?
Nephelometry is the quantitation of suspended particles by measurment of scattered light. This can be performed in either water or air. Nephelometers measure suspended particulates through focussing light on them and measuring the light scattering resulting from this.
How big is a 10 x10 x 5 peridot?
The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.The answer will depend on the units which were used to measure it as 10x10x5.
What units are used to measure units?
simply units....
What is the difference between area and square units?
Square units are used to measure the area of something.
What is the device used to determine the size and concentration of particles suspended in wine ferment?
nephelometer
Why some people use the informal units of measure?
i think it is to measure units of a square
Do units of measure follow the standard deviation?
Units of measure do follow the standard deviation.
How square mile are there in a mile?
None. They are different units. Square units measure area, linear units measure length.
What do you measure units with?
Units of measure are used to measure anything: length or volume, mass or speed, pressure or force etc.
How is turbidity measured?
Turbidity (clarity) of water can be measured with a WAV monitor of a Nephelometer. WAV monitors use a turbidity tube that allows an estimate of water quality based on a visual assessment of the amount of light that is scattered and absorbed in the water sample. This method is useful during and immediately after rain storms. When measuring turbidity in the laboratory, a meter called a Nephelometer is used. It measures the amount of light scattered by the particles in the water in Nephelometric Turbidity Units (NTUs). Deb
