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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.
The phrase per mille (from Latin per mīlle 'in each thousand') [1] indicates parts per thousand. [2] The associated symbol is ‰, similar to a per cent sign % but with an extra zero in the divisor. Major dictionaries do not agree on the spelling, [1] [2] [3] giving other options of per mil, [2] per mill, [1] [3] permil, [1] [4] permill, [1 ...
The salt concentration is usually expressed in parts per thousand ... and parts per million ... The salt concentration in slightly saline water is 1,000 to 3,000 ppm ...
1,000,000, one million; Mill (disambiguation) Per mille, or per mil, parts per thousand This page was last edited on 19 ...
1 volume percent = 10,000 ppmv (i.e., parts per million by volume) with a million being defined as 10 6. Care must be taken with the concentrations expressed as ppbv to differentiate between the British billion which is 10 12 and the USA billion which is 10 9 (also referred to as the long scale and short scale billion, respectively).
Small-cap resurgence. Small caps were one of the beneficiaries of the post-Trump election rally. The Russell 2000 small-cap index jumped more than 5% on Wednesday for its best day in nearly two years.
Various ways of expressing fineness have been used and two remain in common use: millesimal fineness expressed in units of parts per 1,000 [1] and karats or carats used only for gold. Karats measure the parts per 24, so that 18 karat = 18 ⁄ 24 = 75% and 24 karat gold is considered 100% gold. [2]
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