Which Atmosphere Unit Should I Use for Lab Calculations: Technical or Standard?

[ThomasMagnus]

Homework Statement

Hi. I am currently doing a lab where I need to convert mm Hg to atmospheres. When I try to use an online converter to do this, it gives two options for atmospheres, technical and standard. Which would be the best to use for a laboratory calculation?

http://www.onlineconversion.com/pressure.htm

Thanks!

Homework Equations

N/A

The Attempt at a Solution

N/A

 

[DrClaude]

I've never come across the unit "technical atmosphere." So unless the adjective "technical" is there, always take "atmospheres" to be the standard kind, with the abbreviated symbol atm, and with 1 atm = 101325 Pa.

 

[Borek]

According to wikipedia technical atmosphere is exactly 1 kg force over 1 square cm.

1 at = 98.0665 kPa

Go for the one standard one.

 

[Chestermiller]

760 mm Hg = 1 atm.

Chet