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  2. Turbidity - Wikipedia

    en.wikipedia.org/wiki/Turbidity

    In the United States, public water systems that use conventional or direct filtration methods must not have a turbidity higher than 1.0 NTU at the plant outlet and all samples for turbidity must be less than or equal to 0.3 NTU for at least 95 percent of the samples in any month. Systems that use filtration other than the conventional or direct ...

  3. Nephelometer - Wikipedia

    en.wikipedia.org/wiki/Nephelometer

    A nephelometer [1] or aerosol photometer [2] is an instrument for measuring the concentration of suspended particulates in a liquid or gas colloid. A nephelometer measures suspended particulates by employing a light beam (source beam) and a light detector set to one side (often 90°) of the source beam.

  4. File:Earth water distribution ppm chart.svg - Wikipedia

    en.wikipedia.org/wiki/File:Earth_water...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  5. File:Element abundance earth ppm chart.svg - Wikipedia

    en.wikipedia.org/wiki/File:Element_abundance...

    Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

  6. Hard water - Wikipedia

    en.wikipedia.org/wiki/Hard_water

    Parts per million (ppm) is usually defined as 1 mg/L CaCO 3 (the definition used below). [20] It is equivalent to mg/L without chemical compound specified, and to American degree . Grain per gallon (gpg) is defined as 1 grain (64.8 mg) of calcium carbonate per U.S. gallon (3.79 litres), or 17.118 ppm.

  7. The Most Popular Christmas Cocktail in Every State - AOL

    www.aol.com/finance/most-popular-christmas...

    Cranberry Mimosa. Iowa, Kentucky, North Carolina, South Carolina, Virginia, Louisiana, Hawaii . Seven states seem to prefer a Christmas brunch drink for the holidays.

  8. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    Fluorescein aqueous solutions, diluted from 10,000 to 1 parts-per-million in intervals of 10 fold dilution. At 1 ppm the solution is a very pale yellow. As the concentration increases the colour becomes a more vibrant yellow, then orange, with the final 10,000 ppm a deep red colour.

  9. My Husband's Grandpa Cracked the Code to the Best-Ever ... - AOL

    www.aol.com/lifestyle/husbands-grandpa-cracked...

    1. Preheat oven to 350°. In a large bowl using an electric mixer, cream the sugar and butter until the mixture is fluffy and lighter in color, about 5 minutes. Add the eggs, one at a time ...