Nephelometric turbidity units definition

Nephelometric turbidity units or “NTUs” means the units used to describe turbidity. Nephelometric refers to the way the instrument, a nephelometer, measures how much light is scat- tered by suspended particles in the water.
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Nephelometric turbidity units or “NTU” means a measure of turbidity based on a comparison of the intensity of the light scattered by the sample under defined conditions with the intensity of the light scattered by a standard reference suspension under the same conditions.
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Examples of Nephelometric turbidity units in a sentence

  • For the protection of the water contact recreation beneficial use, the wastes discharged to water courses shall have received adequate treatment, so that the turbidity of the treated wastewater does not exceed any of the following: (a) an average of 2 Nephelometric turbidity units (NTUs) within a 24-hour period; (b) 5 NTUs more than 5 percent of the time (72 minutes) within a 24-hour period; and (c) 10 NTU at any time.

  • Nephelometric turbidity units (NTUs) are used as a rough index of the fine suspended sediment content of the water (Davies-Colley and Smith 2000).

  • In accordance with RERTR principles, ANSTO’s Request for Tender for the RRR issued in 1999 specified that only LEU fuel would be acceptable.

  • A partnership/consortium of NRB and/or foreign entity without Bangladeshi partner(s) is not eligible.

  • Except as provided by paragraph (a)(3) of this section, for any construction activity of 30 or more acres, the discharge of stormwater shall not exceed the value listed in the following table: Pollutant or pollutant propertyMaximum forany time (NTU) 1Turbidity ....................................13 1 Nephelometric turbidity units.

  • For the protection of the water contact recreation beneficial use, the wastes discharged to water courses shall have received adequate treatment, so that the turbidity of the wastewater does not exceed any of the following: (a) an average of 2 Nephelometric turbidity units (NTUs) within a 24-hour period; (b) 5 NTUs more than 5 percent of the time (72 minutes) within a 24-hour period; and (c) 10 NTU at any time.

  • Sensor must be suitable for range from [0] [ ] to [2] [20] [200] Nephelometric turbidity units (NTU).

  • ML Megalitre (1,000,000 litres) N/A Not applicable NTU Nephelometric turbidity units Poly Aluminium Chlorohydrate (PAC 23) Coagulant chemical used during coagulation process to remove suspended solids from raw water.

  • Nephelometric turbidity units (NTUs) and ranged from 0.1 to 165.0 NTUs than at a site in the Santa Ana River, where turbidity averaged 21.7 NTUs and ranged from 0.6 to 405.0 NTUs. Suckers were not detected at a different site in the Santa Ana River, where turbidity averaged 57.4 NTUs and ranged from 1.9 to 214.0 NTUs (Saiki 2000).

  • For the protection of the water contact recreation beneficial use, the wastes discharged to water courses shall have received adequate treatment, so that the turbidity of the treated wastewater does not exceed any of the following: (a) an average of 2 Nephelometric turbidity units (NTU) within a 24-hour period; (b) 5 NTU more than 5 percent of the time (72 minutes) within a 24-hour period; and (c) 10 NTU at any time.

Related to Nephelometric turbidity units

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