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Topic: IUPAC changing the standard for pressure from 1 atm to 1 bar?  (Read 3284 times)

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Offline Dave2013

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IUPAC changing the standard for pressure from 1 atm to 1 bar?
« on: May 04, 2013, 02:18:38 AM »
so the title is the question itself. In wikipedia it says that "in 1982 the IUPAC has recommended that the standard for atmospheric pressure should be harmonized to 100,000 Pa = 1 bar" why is that? why did they change the standard to be 1 bar instead of 1 atm? and what was IUPAC's reason behind this? I'm just curious...  :)
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Offline Hunter2

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Re: IUPAC changing the standard for pressure from 1 atm to 1 bar?
« Reply #1 on: July 19, 2013, 06:36:52 AM »
I think it is because SI-standards . 1 bar = 105 N/m2

https://en.wikipedia.org/wiki/Bar_%28unit%29
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