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Lexicon

The largest wine encyclopedia in the world with 26,382 Terms.

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Ppm

Abbreviation for "parts per million". Ppm stands for a numerical value expressed in parts per million, 1 ppm = 1 part per million = 0.0001%. One millionth (ppm) corresponds to one milligram per kilogram by mass, one millilitre per cubic metre by volume and one micromole per mole by quantity of substance. However, the international standard ISO 80000 (quantities and units) recommends not using ppm and also the terms ppb (part per billion) and ppt (part per trillion) because "billion" and "trillion" mean different numbers in English and American usage. In the geosciences, however, the term ppm is still commonly used, as are ppb and ppt, especially in rock analyses. In viticulture, ppm is used for analytical data determined during chromatography to indicate the flavour threshold. See also under units of measurement.

This page was last modified at 7 December, 2023 at 18:47.

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The world's largest Lexicon of wine terms.

26,382 Keywords · 46,989 Synonyms · 5,323 Translations · 31,716 Pronunciations · 202,696 Cross-references
made with ♥ by our author Norbert F. J. Tischelmayer. About the Lexicon

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