Editing Pascal (unit) (section)

== Standard units ==
The unit of measurement called an [[standard atmosphere (unit)|atmosphere or a standard atmosphere]] (atm) is {{convert|101325|Pa|kPa|abbr=on|comma=gaps}}.<ref>{{cite web |url=http://www.bipm.org/jsp/en/ViewCGPMResolution.jsp?CGPM=10&RES=4 |title = Resolution 4 of the 10th meeting of the CGPM |publisher=[[General Conference on Weights and Measures|Conférence Générale des Poids et Mesures]] |year = 1954 |access-date = 2010-04-05 |archive-url=https://web.archive.org/web/20210330142301/http://www.bipm.org/jsp/en/ViewCGPMResolution.jsp?CGPM=10&RES=4 |archive-date=30 March 2021 |url-status=dead }}</ref> This value is often used as a reference pressure and specified as such in some national and international standards, such as the [[International Organization for Standardization]]'s ISO 2787 (pneumatic tools and compressors), [[ISO 2533]] (aerospace) and ISO&nbsp;5024 (petroleum). In contrast, [[International Union of Pure and Applied Chemistry]] (IUPAC) recommends the use of 100&nbsp;kPa as a standard pressure when reporting the properties of substances.<ref>IUPAC.org, Gold Book, [http://goldbook.iupac.org/S05921.html ''Standard Pressure'']</ref>

[[Unicode]] has dedicated code-points {{Unichar|33a9|Square Pa}} and {{Unichar|33AA|Square kPa}} in the [[CJK Compatibility]] block, but these exist only for backward-compatibility with some older ideographic character-sets and are therefore [[deprecate]]d.<ref>{{cite web|url=https://www.unicode.org/charts/PDF/U3300.pdf|title=CJK Compatibility|access-date=2016-02-21|date=2015}}</ref><ref>{{cite book|publisher=The Unicode Consortium|title=The Unicode Standard, Version 8.0.0|location=Mountain View, CA|date=2015|isbn=978-1-936213-10-8|url=https://www.unicode.org/versions/Unicode8.0.0|access-date=2016-02-21}}</ref>