Convert Technical Atmospheres to Millipascals
Convert Technical Atmospheres (at) to Millipascals (mPa) instantly and accurately.
Conversion Formula
mPa = at × 98066500
About Technical Atmospheres
One technical atmosphere (at) = exactly 1 kgf/cm² = 98,066.5 Pa ≈ 0.968 standard atmospheres. The metric technical pressure unit used in pre-SI European and Japanese engineering for boilers, hydraulic cylinders, and compressed gas systems. A steam boiler at 10 at operates at 0.981 MPa; hydraulic presses are rated at 200-600 at. Still used parenthetically in old German and Japanese machinery manuals and standards (DIN 1301-3 legacy). Converts simply from kgf/cm²: 1 at ≡ 1 kgf/cm². 1 at = 98,066.5 Pa.
About Millipascals
A millipascal (mPa) is 10⁻³ Pa. It appears primarily in rheology as the millipascal-second (mPa·s = centipoise) for dynamic viscosity: water at 20°C is 1.002 mPa·s; olive oil ~80 mPa·s; honey 2,000-10,000 mPa·s. Food technology, polymer processing, pharmaceutical formulation, and inkjet printing all specify flow behaviour in mPa·s. Partial pressures of trace atmospheric gases and ultra-high-vacuum leak rates measured by residual gas analysers are also expressed in millipascals. 1 mPa = 10⁻³ Pa.
Quick Reference Table
| Technical Atmospheres (at) | Millipascals (mPa) |
|---|---|
| 1 at | 98066500 mPa |
| 2 at | 196133000 mPa |
| 5 at | 490333000 mPa |
| 10 at | 980665000 mPa |
| 25 at | 2.452 × 109 mPa |
| 50 at | 4.903 × 109 mPa |
| 100 at | 9.807 × 109 mPa |