Technical Atmosphere (at) - Pressure Unit - Definition, Application, Conversions

What is the technical atmosphere (at)?

The technical atmosphere is a unit of pressure that is not part of the SI system but is commonly used in some technical fields. One technical atmosphere is defined as the pressure equivalent to 10 metres of water column (10 mH2O), or exactly 1 kilogram of force per square centimetre (1 kgf/cm²).

The technical atmosphere has its origins in traditional industry and engineering, where it was used to measure pressure in hydraulic and pneumatic systems.

The unit designation for the technical atmosphere is at.

Technical atmosphere (at) is a pressure unit occasionally used in industry, especially in older technical systems. Industrial hoses designed to operate under pressure may have specifications given in technical atmospheres. However, today bars or pascals are more commonly used to define the working pressure of hoses.

When are technical atmospheres used to measure pressure?

Technical atmospheres are used to measure pressure primarily in industry and engineering. Below there are the main applications of this unit:

• Hydraulic and pneumatic engineering - Technical atmosphere is commonly used in hydraulic and pneumatic systems, where precision in pressure measurements is essential to ensure proper operation and safety of equipment such as pumps, valves or pistons.
• Design of machinery and equipment - In the design of machinery, especially those operating under pressure, the technical atmosphere is used to determine the maximum working pressure and strength of materials.
• Materials sciences - Technical atmospheres are used in strength testing of materials and in assessing the strength of pressurised structures, such as pressure vessels or reactors.
• Automotive and aerospace - In these industries, technical atmospheres are used in testing and in the design of components that have to withstand high pressures, such as engines or fuel systems.

How to measure pressure in technical atmospheres?

To measure pressure in technical atmospheres, you can use a manometer that is calibrated in this unit.

Here are the measurement steps to follow:

• Select the appropriate manometer - Select a manometer adapted to the range of pressures you want to measure, and make sure that its scale includes the unit of technical atmospheres (at).
• Identify the measuring point - Determine the place where you want to measure the pressure (e.g. industrial installation, gas tank).
• Connect the manometer - Install the manometer on the measuring port, making sure that it is tightly attached.
• Read the result - After the pressure has stabilized, read the manometer reading. The reading given in technical atmospheres directly expresses the pressure value on this scale.

If you have a manometer calibrated in other pressure units, you can convert them to technical atmospheres using the appropriate pressure converter.

Pressure unit conversion technical atmosphere (at)

• 1 at = 0,980665 bar
• 1 at = 98066,5 Pa
• 1 at = 980,665 hPa
• 1 at = 98,0665 kPa
• 1 at = 0,0980665 MPa
• 1 at = 0,967841 atm
• 1 at = 14,2233 PSI
• 1 at = 10 000 mmH2O
• 1 at = 393,701 inH2O
• 1 at = 735,559 Tr
• 1 at = 735,559 mmHg
• 1 at = 28,9590 inHg
• 1 at = 2048,16 PSF
  

1 technical atmosphere (at) = 0,980665 bar = 98066,5 Pa = 980,665 hPa = 98,0665 kPa = 0,0980665 MPa = 0,967841 atm = 14,2233 PSI = 10 000 mmH2O = 393,701 inH2O = 735,559 Tr = 735,559 mmHg = 28,9590 inHg = 2048,16 PSF

at to Bar - Technical atmosphere to Bar pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Bar multiply the pressure in Technical Atmosphere (at) by 0,980665.

• 1 at to bar? 1 at is equal to 0,980665 bar
• 2 at to bar? 2 at is equal to 1,96133 bar
• 5 at to bar? 5 at is equal to 4,903325 bar
• 10 at to bar? 10 at is equal to 9,80665 bar
• 20 at to bar? 20 at is equal to 19,6133 bar
• 50 at to bar? 50 at is equal to 49,03325 bar
• 100 at to bar? 100 at is equal to 98,0665 bar
• 200 at to bar? 200 at is equal to 196,133 bar
• 500 at to bar? 500 at is equal to 490,3325 bar
• 1000 at to bar? 1000 at is equal to 980,665 bar

at to Pa - Technical atmosphere to Pascal pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Pascal (Pa) multiply the pressure in Technical Atmosphere (at) by 98066,5.

• 1 at to Pa? 1 at is equal to 98066,5 Pa
• 2 at to Pa? 2 at is equal to 196133 Pa
• 5 at to Pa? 5 at is equal to 490332,5 Pa
• 10 at to Pa? 10 at is equal to 980665 Pa
• 20 at to Pa? 20 at is equal to 1961330 Pa
• 50 at to Pa? 50 at is equal to 4903325 Pa
• 100 at to Pa? 100 at is equal to 9806650 Pa
• 200 at to Pa? 200 at is equal to 19613300 Pa
• 500 at to Pa? 500 at is equal to 49033250 Pa
• 1000 at to Pa? 1000 at is equal to 98066500 Pa

at to hPa - Technical atmosphere to Hectopascal pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Hectopascal (hPa) multiply the pressure in Technical Atmosphere (at) by 980,665.

• 1 at to hPa? 1 at is equal to 980,665 hPa
• 2 at to hPa? 2 at is equal to 1961,33 hPa
• 5 at to hPa? 5 at is equal to 4903,325 hPa
• 10 at to hPa? 10 at is equal to 9806,65 hPa
• 20 at to hPa? 20 at is equal to 19613,3 hPa
• 50 at to hPa? 50 at is equal to 49033,25 hPa
• 100 at to hPa? 100 at is equal to 98066,5 hPa
• 200 at to hPa? 200 at is equal to 196133 hPa
• 500 at to hPa? 500 at is equal to 490332,5 hPa
• 1000 at to hPa? 1000 at is equal to 980665 hPa

at to kPa - Technical atmosphere to Kilopascal pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Kilopascal (kPa) multiply the pressure in Technical Atmosphere (at) by 98,0665.

• 1 at to kPa? 1 at is equal to 98,0665 kPa
• 2 at to kPa? 2 at is equal to 196,133 kPa
• 5 at to kPa? 5 at is equal to 490,3325 kPa
• 10 at to kPa? 10 at is equal to 980,665 kPa
• 20 at to kPa? 20 at is equal to 1961,33 kPa
• 50 at to kPa? 50 at is equal to 4903,325 kPa
• 100 at to kPa? 100 at is equal to 9806,65 kPa
• 200 at to kPa? 200 at is equal to 19613,3 kPa
• 500 at to kPa? 500 at is equal to 49033,25 kPa
• 1000 at to kPa? 1000 at is equal to 98066,5 kPa

at to MPa - Technical atmosphere to Megapascal pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Megapascal (MPa) multiply the pressure in Technical Atmosphere (at) by 0,0980665.

• 1 at to MPa? 1 at is equal to 0,0980665 MPa
• 2 at to MPa? 2 at is equal to 0,196133 MPa
• 5 at to MPa? 5 at is equal to 0,4903325 MPa
• 10 at to MPa? 10 at is equal to 0,980665 MPa
• 20 at to MPa? 20 at is equal to 1,96133 MPa
• 50 at to MPa? 50 at is equal to 4,903325 MPa
• 100 at to MPa? 100 at is equal to 9,80665 MPa
• 200 at to MPa? 200 at is equal to 19,6133 MPa
• 500 at to MPa? 500 at is equal to 49,03325 MPa
• 1000 at to MPa? 1000 at is equal to 98,0665 MPa

at to atm - Technical atmosphere to Atmosphere pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Atmosphere (atm) multiply the pressure in Technical Atmosphere (at) by 0,967841.

• 1 at to atm? 1 at is equal to 0,967841 atm
• 2 at to atm? 2 at is equal to 1,935682 atm
• 5 at to atm? 5 at is equal to 4,839205 atm
• 10 at to atm? 10 at is equal to 9,67841 atm
• 20 at to atm? 20 at is equal to 19,35682 atm
• 50 at to atm? 50 at is equal to 48,39205 atm
• 100 at to atm? 100 at is equal to 96,7841 atm
• 200 at to atm? 200 at is equal to 193,5682 atm
• 500 at to atm? 500 at is equal to 483,9205 atm
• 1000 at to atm? 1000 at is equal to 967,841 atm

at to PSI - Technical atmosphere to PSI pressure unit conversion

To convert pressure from Technical Atmosphere (at) to PSI multiply the pressure in Technical Atmosphere (at) by 14,2233.

• 1 at to PSI? 1 at is equal to 14,2233 PSI
• 2 at to PSI? 2 at is equal to 28,4466 PSI
• 5 at to PSI? 5 at is equal to 71,1165 PSI
• 10 at to PSI? 10 at is equal to 142,233 PSI
• 20 at to PSI? 20 at is equal to 284,466 PSI
• 50 at to PSI? 50 at is equal to 711,165 PSI
• 100 at to PSI? 100 at is equal to 1422,33 PSI
• 200 at to PSI? 200 at is equal to 2844,66 PSI
• 500 at to PSI? 500 at is equal to 7111,65 PSI
• 1000 at to PSI? 1000 at is equal to 14223,3 PSI

at to mmH2O - Technical atmosphere to Milimetre of water column pressure unit conversion

To convert pressure from the Technical Atmosphere (at) to Milimetre of water column (mmH2O) multiply the pressure in the Technical Atmosphere (at) by 10000.

• 1 at to mmH2O? 1 at is equal to 10000 mmH2O
• 2 at to mmH2O? 2 at is equal to 20000 mmH2O
• 5 at to mmH2O? 5 at is equal to 50000 mmH2O
• 10 at to mmH2O? 10 at is equal to 100000 mmH2O
• 20 at to mmH2O? 20 at is equal to 200000 mmH2O
• 50 at to mmH2O? 50 at is equal to 500000 mmH2O
• 100 at to mmH2O? 100 at is equal to 1000000 mmH2O
• 200 at to mmH2O? 200 at is equal to 2000000 mmH2O
• 500 at to mmH2O? 500 at is equal to 5000000 mmH2O
• 1000 at to mmH2O? 1000 at is equal to 10000000 mmH2O

at to inH2O - Technical atmosphere to Inch of water column pressure unit conversion

To convert pressure from the Technical Atmosphere (at) to an Inch of water column (inH2O) multiply the pressure in the Technical Atmosphere (at) by 393,701.

• 1 at to inH2O? 1 at is equal to 393,701 inH2O
• 2 at to inH2O? 2 at is equal to 787,402 inH2O
• 5 at to inH2O? 5 at is equal to 1968,505 inH2O
• 10 at to inH2O? 10 at is equal to 3937,01 inH2O
• 20 at to inH2O? 20 at is equal to 7874,02 inH2O
• 50 at to inH2O? 50 at is equal to 19685,05 inH2O
• 100 at to inH2O? 100 at is equal to 39370,1 inH2O
• 200 at to inH2O? 200 at is equal to 78740,2 inH2O
• 500 at to inH2O? 500 at is equal to 196850,5 inH2O
• 1000 at to inH2O? 1000 at is equal to 393701 inH2O

at to torr - Technical atmosphere to torr pressure unit conversion

To convert pressure from Technical Atmosphere (at) to torr (Tr) multiply the pressure in Technical Atmosphere (at) by 735,559.

• 1 at to torr? 1 at is equal to 735,559 torr
• 2 at to torr? 2 at is equal to 1471,118 torr
• 5 at to torr? 5 at is equal to 3677,795 torr
• 10 at to torr? 10 at is equal to 7355,59 torr
• 20 at to torr? 20 at is equal to 14711,18 torr
• 50 at to torr? 50 at is equal to 36777,95 torr
• 100 at to torr? 100 at is equal to 73555,9 torr
• 200 at to torr? 200 at is equal to 147111,8 torr
• 500 at to torr? 500 at is equal to 367779,5 torr
• 1000 at to torr? 1000 at is equal to 735559 torr

at to mmHg - Technical atmosphere to Milimetre of mercury column pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Milimetre of mercury column (mmHg) multiply the pressure in Technical Atmosphere (at) by 735,559.

• 1 at to mmHg? 1 at is equal to 735,559 mmHg
• 2 at to mmHg? 2 at is equal to 1471,118 mmHg
• 5 at to mmHg? 5 at is equal to 3677,795 mmHg
• 10 at to mmHg? 10 at is equal to 7355,59 mmHg
• 20 at to mmHg? 20 at is equal to 14711,18 mmHg
• 50 at to mmHg? 50 at is equal to 36777,95 mmHg
• 100 at to mmHg? 100 at is equal to 73555,9 mmHg
• 200 at to mmHg? 200 at is equal to 147111,8 mmHg
• 500 at to mmHg? 500 at is equal to 367779,5 mmHg
• 1000 at to mmHg? 1000 at is equal to 735559 mmHg

at to inHg - Technical atmosphere to Inch of mercury column pressure unit conversion

To convert pressure from Technical Atmosphere (at) to Inch of mercury column (inHg) multiply the pressure in Technical Atmosphere (at) by 28,959.

• 1 at to inHg? 1 at is equal to 28,959 inHg
• 2 at to inHg? 2 at is equal to 57,918 inHg
• 5 at to inHg? 5 at is equal to 144,795 inHg
• 10 at to inHg? 10 at is equal to 289,59 inHg
• 20 at to inHg? 20 at is equal to 579,18 inHg
• 50 at to inHg? 50 at is equal to 1447,95 inHg
• 100 at to inHg? 100 at is equal to 2895,9 inHg
• 200 at to inHg? 200 at is equal to 5791,8 inHg
• 500 at to inHg? 500 at is equal to 14479,5 inHg
• 1000 at to inHg? 1000 at is equal to 28959 inHg

at to PSF - Technical atmosphere to PSF pressure unit conversion

To convert pressure from Technical Atmosphere (at) to PSF multiply the pressure in Technical Atmosphere (at) by 2048,16.

• 1 at to PSF? 1 at is equal to 2048,16 PSF
• 2 at to PSF? 2 at is equal to 4096,32 PSF
• 5 at to PSF? 5 at is equal to 10240,8 PSF
• 10 at to PSF? 10 at is equal to 20481,6 PSF
• 20 at to PSF? 20 at is equal to 40963,2 PSF
• 50 at to PSF? 50 at is equal to 102408 PSF
• 100 at to PSF? 100 at is equal to 204816 PSF
• 200 at to PSF? 200 at is equal to 409632 PSF
• 500 at to PSF? 500 at is equal to 1024080, PSF
• 1000 at to PSF? 1000 at is equal to 2048160, PSF