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

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

perm (23°C)
perm (0°C)

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

Conversion Formula

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

Example

Convert 15 perm (23°C) to perm (0°C):

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

Unit Information

Learn about the permeability units you're converting between

Permeability (23°C)

perm (23°C)

Definition

The permeability at 23°C is a traditional unit of permeability used in building materials and textiles, representing the vapor transmission rate through a material at 23 degrees Celsius (room temperature). It provides a more practical reference temperature for most applications.

History/Origin

The permeability at 23°C was established as a standard reference temperature for permeability measurements in building materials, as 23°C represents typical room temperature conditions. It provides more relevant data for practical building applications than 0°C measurements.

Current Use

Permeability at 23°C is widely used in building materials testing, HVAC design, and construction specifications where room temperature conditions are more relevant than freezing point measurements for practical applications.

Multiplier

6E-11

Offset

0

Permeability (0°C)

perm (0°C)

Definition

The permeability at 0°C is a traditional unit of permeability used in building materials and textiles, representing the vapor transmission rate through a material at 0 degrees Celsius. It is commonly used in the construction industry for measuring moisture vapor transmission.

History/Origin

The permeability at 0°C was developed in the building materials industry as a practical unit for measuring moisture vapor transmission through construction materials. It became standardized for comparing the breathability of different building materials and textiles.

Current Use

Permeability at 0°C is extensively used in the construction industry, textile manufacturing, and building materials testing where moisture control and vapor transmission are critical for material performance and building envelope design.

Multiplier

6E-11

Offset

0

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

Permeability (23°C) [perm (23°C)] Permeability (0°C) [perm (0°C)]
1 perm (23°C) 1.004177 perm (0°C)
10 perm (23°C) 10.041773 perm (0°C)
25 perm (23°C) 25.104433 perm (0°C)
50 perm (23°C) 50.208867 perm (0°C)
100 perm (23°C) 100.417734 perm (0°C)
0 perm (23°C) 0E+0 perm (0°C)
-10 perm (23°C) -10.041773 perm (0°C)
-40 perm (23°C) -40.167093 perm (0°C)