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Table 113 (6/4 and 8/4 southern lowland oak) Temperature Equilibrium Temperature Moisture Dry- Wet- moisture Relative Dry- Wet- Step content bulb bulb content humidity bulb bulb pct (Air dry to) - - - - - - °F - - - - - - - - - - - - pct - - - - - - 13.5 75 11.6 68 9.6 60 5.7 35 3.4 21 - - - - - - °C - - - - - - 40.5 36.0 43.5 37.0 49.0 40.5 54.5 37.5 71.0 43.5 1 30 to 25 2 25 to 20 3 20 to 15 4 15 to 11 5 11 to Final Equalize and condition as necessary (see appendix A). 105 97 110 99 120 105 130 100 160 110 Table 114 (bacterially infected 4/4 upland red oak, schedule for minimizing honeycomb and degrade1) Temperature Equilibrium Temperature Moisture Dry- Wet- moisture Relative Dry- Wet- Step content bulb bulb content humidity bulb bulb pct - - - - - - °F - - - - - - - - - - - - pct - - - - - - 19.3 90 16.2 83 12.6 71 10.3 60 9.4 55 8.8 52 7.9 49 5.6 35 4.2 28 3.3 26 - - - - - - °C - - - - - - 40.5 39.0 40.5 37.5 40.5 35.5 40.5 33.0 40.5 32.0 43.5 34.0 49.0 37.5 54.5 37.5 65.5 43.5 82.0 54.5 1 Above 55 2 55 to 45 3 45 to 35 4 35 to 30 5 30 to 27 6 27 to 25 7 25 to 20 8 20 to 16 9 16 to 12 10 12toFinal 180 130 Equalize and condition as necessary (see appendix A). 105 102 105 100 105 96 105 92 105 90 110 93 120 100 130 100 150 110 1Material from southern lowland oak should be air dried in a sheltered location or forced-air dried by a mild 8/4 procedure until the wettest half of the infected kiln samples have a moisture content of 22 pct or lower. Kiln drying can then be started using 120 °F dry-bulb and 110 °F wet-bulb temperatures for 16 to 24 h. Then the above schedule can be followed in accordance with the moisture content of the controlling samples. 75PDF Image | Dry Kiln Schedules for Commercial Woods Temperate and Tropical
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