Technical atmosphere
Encyclopedia : T : TE : TEC : Technical atmosphere
A technical atmosphere (symbol: at) is a non-SI unit of pressure equal to 1 kilogram-force per square centimeter, i.e. 98.066 5 kilopascals (kPa) or about 0.96784 standard atmospheres.
The symbol "at" clashes with that of the katal, "kat": a kilotechnical atmosphere would have the symbol "kat", indistinguishable from the symbol for the katal.
| Pascal (Pa) | Bar (bar) | Technical atmosphere (at) | Atmosphere (atm) | Torr (mmHg) | Pound per square inch (psi) | |
|---|---|---|---|---|---|---|
| 1 Pa | N/m² | 10−5 | ||||
| 1 bar | 100 000 | 6 dyne>dyn/cm² | 1.0197 | 0.98692 | 750.06 | 14.504 |
| 1 at | 98 066.5 | 0.980665 | kgf/cm² | 0.96784 | 735.56 | 14.223 |
| 1 atm | 101 325 | 1.01325 | 1.0332 | Pa | 760 | 14.696 |
| 1 Torr | 133.322 | mmHg | ||||
| 1 psi | 6,894.76 | 51.715 | lbf/in² |
Example reading: 1 Pa = 1 N/m² = 10−5 bar = 10.197×10−6 at = 9.8692×10−6 atm ....etc.
Note: mmHg is an abbreviation for millimetres of mercury.
External links
- NIST Guide for the Use of the International System of Units (SI), [Appendix B: Conversion Factors]
External links
- [Conversion of at in other units]
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.