From Wikipedia, the free encyclopedia
PSI (Pounds per Square Inch) er en enhed der bruges til at måle tryk, for eksempel lufttryk i et bildæk. PSI angiver trykket i Avoirdupois pound-force (lbf) pr. engelske kvadrattommer.
For alternative betydninger, se Psi.
1 PSI = ≈ ≈ 6894,757 N/m²
1 Bar tryk = 14,504 PSI
| Pa | bar | N/mm² | kp/m² | kp/cm² (at) | atm | torr | PSI | |
|---|---|---|---|---|---|---|---|---|
| 1 Pa (N/m²)= | 1 | 10-5 | 10-6 | 0,102 | 0.102×10-4 | 0,987×10-5 | 0,0075 | 1,450377×10-4 |
| 1 bar (daN/cm²) = | 100.000 | 1 | 0,1 | 10200 | 1,02 | 0,987 | 750 | 14,5 |
| 1 N/mm² = | 106 | 10 | 1 | 1,02×105 | 10,2 | 9,87 | 7500 | 145,0377 |
| 1 kp/m² = | 9,81 | 9,81×10-5 | 9,81×10-6 | 1 | 10-4 | 0,968×10-4 | 0,0736 | 0,00142 |
| 1 kp/cm² (1 at) = | 98100 | 0,981 | 0,0981 | 10000 | 1 | 0,968 | 736 | 14,2 |
| 1 atm (760 torr) = | 101325 | 1,013 | 0,1013 | 10330 | 1,033 | 1 | 760 | 14,7 |
| 1 torr = | 133 | 0,00133 | 1,33×10-4 | 13,6 | 0,00136 | 0,00132 | 1 | 0,019 |
| 1 PSI = | 6894 | 0,069 | 0,0069 | 704 | 0,0704 | 0,068 | 51,7 | 1 |
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