Editing Trivial name (section)

==Definitions==
In scientific documents, international treaties, patents and legal definitions, [[chemical nomenclature|names for chemicals]] are needed that
identify them unambiguously. This need is satisfied by [[systematic name]]s. One such system, established by the [[International Union of Pure and Applied Chemistry]] (IUPAC), was established in 1950. Other systems have been developed by the [[American Chemical Society]], the [[International Organization for Standardization]], and the [[World Health Organization]]. However, chemists still use many names that are not systematic because they are traditional or because they are more convenient than the systematic names. These are called ''trivial names''. The word "trivial", often used in a pejorative sense, was intended to mean "commonplace".<ref name=Leigh>{{harvnb|Leigh|2012}}</ref>

In addition to trivial names, chemists have constructed ''semi-trivial names'' by appending a standard symbol to a trivial stem.<ref name=Smith>{{cite journal|last=Smith|first=Peter A. S.|title=Trivial names for chemical substances: Will they be taught or forgotten in the twenty-first century?|journal=Journal of Chemical Education|year=1992|volume=69|issue=11|pages=877|doi=10.1021/ed069p877|bibcode=1992JChEd..69..877S|doi-access=free}}</ref> Some trivial and semi-trivial names are so widely used that they have been officially adopted by IUPAC; these are known as ''[[retained name]]s''.

===Pesticide common names===
[[File:ASM ytterbymine.jpg|thumb|right|A plaque commemorating a mine in [[Ytterby]] where ore was obtained from which four new elements were isolated.]]
The common names used for [[Pesticide|pesticides]] did not become commonplace through repeated informal usage, The names are granted by [[International Organization for Standardization|ISO]] committee (TC81), who approve the common name according to ISO1750.<ref>{{Cite web |title=Compendium of Pesticide Common Names. Basic Introduction |url=http://www.bcpcpesticidecompendium.org/basics.html |access-date=8 January 2025 |website=British Crop Production Council (BCPC)}}</ref>