Corneal Ulcer Guide: 1  Definition. 2  Causes & Prevention. 3  Diagnosis and Tests. 4  Symptoms and Signs. 5  Treatment & Prognosis. >>> 6  Dog Health A-Z.
Standard Temperature and Pressure (STP) Standard Temperature and Pressure (STP) is defined as 0 degrees Celsius and 1 atmosphere of pressure. Do not confuse STP with the STP Products Company, a maker of oil and fuel additives...unless you are reading one of their MSDS's!
The unit of measurement called standard atmosphere (atm) is defined as 101,325 Pa and approximates to the average pressure at sea-level at the latitude 45Â° N. Meteorological reports typically state atmospheric pressure in hectopascals.