Permeability Inches (23°C) to Permeability Inches (0°C) Conversion

Convert between Permeability Inches (23°C) and Permeability Inches (0°C) quickly and accurately.

perm·in (23°C)
perm·in (0°C)

How to Convert Permeability Inches (23°C) to Permeability Inches (0°C)

Conversion Formula

1 perm·in (23°C) = 1.004 perm·in (0°C)
1 perm·in (0°C) = 0.996 perm·in (23°C)

Example

Convert 15 perm·in (23°C) to perm·in (0°C):

15 perm·in (23°C) = 15 × 1.004 perm·in (0°C) = 15.063 perm·in (0°C)

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

Permeability Inches (0°C)

perm·in (0°C)

Definition

The permeability inches at 0°C is a unit of permeability used in the US building industry, representing the vapor transmission rate through a material at 0 degrees Celsius per inch of thickness. It provides a thickness-normalized measure of material permeability.

History/Origin

The permeability inches at 0°C was developed in the US building industry as a practical unit that accounts for material thickness in permeability measurements. It allows for direct comparison of materials with different thicknesses in construction applications.

Current Use

Permeability inches at 0°C is used in US building codes, construction specifications, and material testing where thickness-normalized permeability values are needed for proper material selection and building envelope design.

Multiplier

1E-12

Offset

0

Permeability Inches (23°C) to Permeability Inches (0°C) Conversion Table

Permeability Inches (23°C) [perm·in (23°C)] Permeability Inches (0°C) [perm·in (0°C)]
1 perm·in (23°C) 1.004177 perm·in (0°C)
10 perm·in (23°C) 10.041769 perm·in (0°C)
25 perm·in (23°C) 25.104423 perm·in (0°C)
50 perm·in (23°C) 50.208847 perm·in (0°C)
100 perm·in (23°C) 100.417693 perm·in (0°C)
0 perm·in (23°C) 0E+0 perm·in (0°C)
-10 perm·in (23°C) -10.041769 perm·in (0°C)
-40 perm·in (23°C) -40.167077 perm·in (0°C)