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One part per hundred thousand, per cent mille (pcm) or milli-percent denotes one part per 100,000 (10 5) parts, and a value of 10 −5. It is commonly used in epidemiology for mortality, crime and disease prevalence rates, and nuclear reactor engineering as a unit of reactivity.
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 resulting 'Knudsen salinities' are expressed in units of parts per thousand (ppt or ‰). The use of electrical conductivity measurements to estimate the ionic content of seawater led to the development of the scale called the practical salinity scale 1978 (PSS-78).
.ppt, the file format used by Microsoft PowerPoint presentation software; Parts-per notation for parts-per-trillion (more common) or parts-per-thousand (less common) PerlPowerTools, a revitalized of the classic Unix command set in pure Perl; Positive partial transpose, a criterion used in quantum mechanics
The related concept of permille or parts per thousand (ppt) has an implied denominator of 1000, while the more general parts-per notation, as in 75 parts per million (ppm), means that the proportion is 75/1,000,000. Whether common fractions or decimal fractions are used is often a matter of taste and context.
The salt concentration is usually expressed in parts per thousand (permille, ... The salt concentration in slightly saline water is 1,000 to 3,000 ppm (0.1–0.3% ...
After working diligently for eight years, Scott discovers that, per "The Mrs. Clause," he has to get married by Christmas Eve or give up the red suit for good. But while he tries to find his Mrs ...
Water temperature of less than 80 °F (27 °C) and salinity levels below 37.5 parts per thousand (ppt) are ideal for seatrout spawning; however, water management stations in the Everglades and Florida Bay reported salinity levels of 64.4 ppt in July 2015 and recorded water temperatures of up to 92 °F (33 °C). [46]