Is e seo am brùthadh a dh'adhbharaicheas cuideam an àile aig (an ìre mhath) co-àird na mara.
Tha e co-ionnan ri 101325 N m<sup>–2</sup> neo Pa Pascal neo 1013.25 millibar.<ref>{{iomradh lìon | tiotal = standard atmosphere | obair = Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") |url = http://goldbook.iupac.org/html/S/S05906.html| deasaiche = McNaught, A. D. McNaught agus Wilkinson, A. | foillsichear = Blackwell Scientific Publications, Oxford | ceann-là = 1997 |ceann-là_inntrigidh = 2017-09-21 }} Tionndadh XML on-lineceartaichte correctedair versionloidhne: http://goldbook.iupac.org (2006-) created byle M. Nic, J. Jirat, B. Kosata; updatesùrachaidhean compiledco-chruinnichte byle A. Jenkins.</ref>
