bn:00667136n
Noun Concept
Categories: Chemical nomenclature, Units of measurement, Mathematical terminology, Dimensionless numbers, Metrics
EN
parts-per notation  parts per million  uno  1 Billionth  1 Over 10^9
EN
In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Wikipedia
English:
PPM
Definitions
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EN
In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Wikipedia
Unit of measurement based on number of particles Wikidata
Set of pseudo units to describe small values of miscellaneous dimensionless quantities Wikidata