Permeability Inches (23°C) to Kilogram per Pascal Second Square Meter Conversion
Convert between Permeability Inches (23°C) and Kilogram per Pascal Second Square Meter quickly and accurately.
How to Convert Permeability Inches (23°C) to Kilogram per Pascal Second Square Meter
Conversion Formula
Example
Convert 15 perm·in (23°C) to kg/(Pa·s·m²):
Unit Information
Learn about the permeability units you're converting between
Permeability Inches (23°C)
perm·in (23°C)
Definition
The permeability inches at 23°C is a unit of permeability used in the US building industry, representing the vapor transmission rate through a material at 23 degrees Celsius per inch of thickness. It provides a thickness-normalized measure at room temperature conditions.
History/Origin
The permeability inches at 23°C was established as a standard reference temperature for thickness-normalized permeability measurements in the US building industry, providing more practical data for typical building conditions than 0°C measurements.
Current Use
Permeability inches at 23°C is widely used in US building codes, HVAC design, and construction specifications where room temperature conditions and thickness-normalized values are essential for proper material selection and building performance evaluation.
Multiplier
1E-12
Offset
0
Kilogram per Pascal Second Square Meter
kg/(Pa·s·m²)
Definition
The kilogram per pascal second square meter is the SI base unit for permeability, representing the mass flow rate of a fluid through a material per unit pressure gradient and per unit area. It measures how easily a fluid can pass through a porous material under a pressure difference.
History/Origin
The kilogram per pascal second square meter was established as the SI base unit for permeability following the adoption of the International System of Units. It derives from the fundamental relationship between mass flow, pressure gradient, and area in fluid mechanics and porous media studies.
Current Use
Kilogram per pascal second square meter is widely used in scientific research, engineering applications, and industrial processes where precise permeability measurements are required, including petroleum engineering, groundwater studies, and materials science.
Multiplier
1
Offset
0
Permeability Inches (23°C) to Kilogram per Pascal Second Square Meter Conversion Table
| Permeability Inches (23°C) [perm·in (23°C)] | Kilogram per Pascal Second Square Meter [kg/(Pa·s·m²)] |
|---|---|
| 1 perm·in (23°C) | 1E-12 kg/(Pa·s·m²) |
| 10 perm·in (23°C) | 1E-11 kg/(Pa·s·m²) |
| 25 perm·in (23°C) | 4E-11 kg/(Pa·s·m²) |
| 50 perm·in (23°C) | 7E-11 kg/(Pa·s·m²) |
| 100 perm·in (23°C) | 1E-10 kg/(Pa·s·m²) |
| 0 perm·in (23°C) | 0E+0 kg/(Pa·s·m²) |
| -10 perm·in (23°C) | -1E-11 kg/(Pa·s·m²) |
| -40 perm·in (23°C) | -6E-11 kg/(Pa·s·m²) |
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