atmosphere technical [at] Unit Converter

Definition of atmosphere technical [at] unit

The technical atmosphere (at) is a non-SI unit of pressure defined as one kilogram-force per square centimeter. It equals exactly 98,066.5 pascals, approximately 0.96784 standard atmospheres, and represents pressure exerted by that force over that area.

History of atmosphere technical [at] unit

The technical atmosphere emerged from the metric gravitational system, where pressure was related to the weight of a one-kilogram mass acting on one square centimeter under standard gravity. It became common in engineering and industry, especially in Europe, during the nineteenth and twentieth centuries. Unlike the standard atmosphere, based on average sea-level air pressure, the technical atmosphere was tied directly to kilogram-force. Although once widely used for machinery, hydraulics, and pressure ratings, it has largely been replaced by the pascal and bar in modern standards and scientific practice.

Applications of atmosphere technical [at] unit

Today, the technical atmosphere may appear in older European engineering documents, equipment manuals, hydraulic specifications, and legacy pressure gauges. It is also encountered when interpreting historical tire, boiler, or pump ratings. For clarity and international compatibility, modern instruments and publications generally convert values to pascals, kilopascals, bars, or megapascals for routine engineering use.

Complete list of atmosphere technical [at] unit conversion