bar

https://doi.org/10.1351/goldbook.B00596
Non-SI unit of pressure, \(\text{bar} = 10^{5}\ \text{Pa}\).
Sources:
Green Book, 2nd ed., p. 75 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 963 [Terms] [Paper]