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Search "Parts-per notation"


Parts-per notation

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About 10 pages (3,046 words) in 4 products

"Parts-per notation" Search Results
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Encyclopedia and Summary Information
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Parts Per Trillion Summary
101 words, approx. 1 pages
A means of expressing extremely minute concentrations of substances in water or air. In the United States, the concentration is the number of units of the substance found in 1x1012 units of water or air; an equivalent unit is nanograms per kilogram....
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Parts Per Billion Summary
90 words, approx. 1 pages
A means of expressing minute concentrations, often of an element, compound, or particle that contaminates soil, water, air, or blood. The expression may be on either a mass or a volume basis, or a combination of the two, such as micrograms of a...
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Parts Per Million Summary
75 words, approx. 1 pages
A means of expressing small concentrations, usually of an element, compound, contaminant, or particle in water or a mixed medium such as soil and normally on a mass basis. Units that are equivalent to ppm include micrograms per gram, milligrams per...
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Parts-per notation Information
2,780 words, approx. 9 pages
Parts-per notation is often used in the measure of dilutions (concentrations) in chemistry; for instance, to measure the relative abundance of dissolved minerals or pollutants in water. The expression “1 ppm” means a given property exists at a...


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News and Journals
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The Washington Post
Remember This: 350 Parts Per Million
12/28/2007: 819 words, approx. 3 pages
This month may have been the most important yet in the two- decade history of the fight against global warming. Al Gore got his Nobel in Stockholm; international negotiators made real progress on a treaty in Bali; and in Washington, Congress actually worked up...
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Artforum
Scientific Notation
12/01/2005: 4,883 words, approx. 16 pages
Scientific Notation BIOMECHANICIST THOMAS MCMAHON CAPTURED THE KINETIC SPIRIT OF THE LABORATORY IN HIS NOVELS EVER SINCE C. P. SNOW FAMOUSLY LAMENTED THE "GULF OF MUTUAL INCOMPREHENSION" BETWEEN SCIENTIFIC AND HUMANISTIC THINKERS, THERE HAS BEEN NO SHORTAGE OF CULTURAL HAND-WRINGING ABOUT THE...
 


 

Parts-per notation

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About 10 pages (3,046 words) in 4 products


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