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    Equilibrium Moisture Content (Emc) Chart: Relative Humidity % Ambient Air Temp (Deg. F)

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    inez
    This chart provides the equilibrium moisture content (EMC) for wood based on temperature and humidity readings in a shop. To use it, measure the humidity with a hygrometer and note the temperature, then find where those numbers intersect on the chart to learn the EMC value for wood under those conditions. The EMC indicates the moisture content wood will reach if left in the shop until it equals the moisture in the surrounding air.

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    Download as PDF, TXT or read online from Scribd

    Equilibrium Moisture Content (Emc) Chart: Relative Humidity % Ambient Air Temp (Deg. F)

    Uploaded by

    inez
    32 views1 page
    This chart provides the equilibrium moisture content (EMC) for wood based on temperature and humidity readings in a shop. To use it, measure the humidity with a hygrometer and note the temperature, then find where those numbers intersect on the chart to learn the EMC value for wood under those conditions. The EMC indicates the moisture content wood will reach if left in the shop until it equals the moisture in the surrounding air.

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    This chart provides the equilibrium moisture content (EMC) for wood based on temperature and humidity readings in a shop. To use it, measure the humidity with a hygrometer and note the temperature, then find where those numbers intersect on the chart to learn the EMC value for wood under those conditions. The EMC indicates the moisture content wood will reach if left in the shop until it equals the moisture in the surrounding air.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    32 views1 page

    Equilibrium Moisture Content (Emc) Chart: Relative Humidity % Ambient Air Temp (Deg. F)

    Uploaded by

    inez
    This chart provides the equilibrium moisture content (EMC) for wood based on temperature and humidity readings in a shop. To use it, measure the humidity with a hygrometer and note the temperature, then find where those numbers intersect on the chart to learn the EMC value for wood under those conditions. The EMC indicates the moisture content wood will reach if left in the shop until it equals the moisture in the surrounding air.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    Equilibrium Moisture Content (EMC) Chart

    This chart provides the equilibrium moisture content for wood based on a shop’s humidity and temperature.
    Measure the humidity with a hygrometer, check the shop temperature, and look up the numbers in the chart.

    Relative Ambient Air Temp (deg. F)


    Humidity % 30 40 50 60 70 80 90 100
    5 1.4 1.4 1.4 1.3 1.3 1.3 1.2 1.2
    10 2.6 2.6 2.6 2.5 2.5 2.4 2.3 2.3
    15 3.7 3.7 3.6 3.6 3.5 3.5 3.4 3.3
    20 4.6 4.6 4.6 4.6 4.5 4.4 4.3 4.2
    25 5.5 5.5 5.5 5.4 5.4 5.3 5.1 5.0
    30 6.3 6.3 6.3 6.2 6.2 6.1 5.9 5.8
    35 7.1 7.1 7.1 7.0 6.9 6.8 6.7 6.5
    40 7.9 7.9 7.9 7.8 7.7 7.6 7.4 7.2
    45 8.7 8.7 8.7 8.6 8.5 8.3 8.1 7.9
    50 9.5 9.5 9.5 9.4 9.2 9.1 8.9 8.7
    55 10.4 10.4 10.3 10.2 10.1 9.9 9.7 9.5
    60 11.3 11.3 11.2 11.1 11.0 10.8 10.5 10.3
    65 12.4 12.3 12.3 12.1 12.0 11.7 11.5 11.2
    70 13.5 13.5 13.4 13.3 13.1 12.9 12.6 12.3
    75 14.9 14.9 14.8 14.6 14.4 14.2 13.9 13.6
    80 16.5 16.5 16.4 16.2 16.0 15.7 15.4 15.1
    85 18.5 18.5 18.4 18.2 17.9 17.7 17.3 17.0
    90 21.0 21.0 20.9 20.7 20.5 20.2 19.8 19.5
    95 24.3 24.3 24.3 24.1 23.9 23.6 23.3 22.9
    98 26.9 26.9 26.9 26.8 26.6 26.3 26.0 25.6

    Figures based on data provided by the U.S. Forest Products Laboratory

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