A passenger jet can attempt a landing on a 3000 feet long runway from 4 nautical miles from touchdown point, flying 250 knots at 1500 feet. Altimeters must be calibrated to announced local atmospheric pressure, or the default to 29.92 inHg or 1013 hPa.
Autoclave is a device used for sterilization that exploits saturated(pressure equal to ambient) steam. It is usually ran for 15 minutes at 121C(250F). According to a random internet source[1], atmospheric pressure at sea level is around 15 psi, and 250F is the point where pressure of steam exceeds that, being a function of temperature.
(One of) the beauty of SI units is measurement devices itself are universally built and marked in SI units that disparate measurements across industries can be converted and compared against. There is no “3000 feet runway 4 miles away” in metric, it’s a 1km runway 6.5km away. There is no need to convert between inHg and feet and PSI, or lb-ft and inch-pounds just because F.G. Superman in 1337 who pioneered art of bicycle repairing set measurement and tolerance for a bike frame to be 50 +/- 3.5 inch-yard per fortnight centigrade.
But that requires phenomena to be well studied and measurements clearly defined against SI units, which is a point more industries than we care to admit has reached.
That has to be an aspect of why imperial units persist, despite NASA and cutting edge aerospace are moving away from it, other than there would be a simple matter of gross widespread ignorance.
1: https://biology.stackexchange.com/questions/95722/why-do-we-...