Office(n.) The place where any kind of business or service for others is transacted; a building, suite of rooms, or room in which public officers or workers in any organization transact business; as, the register's office; a lawyer's office; the doctor's office; the Mayor's office.
The density of mercury (Hg) is 13.534 grams per milliliter. There are 29.5735297 milliliters in a fluid ounce. Therefore, there are 13.534 g/mL * 29.5735 mL/fl oz.
= 29.92 inches of mercury absolute (HgA), = 14.7 pounds per square inch absolute (lb/inÂ², PSIA). Atmospheric pressure is often measured with a mercury barometer, and a height of approximately 760 millimetres (30 in) of mercury is often used to illustrate (and measure) atmospheric pressure.