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Table 2. Wood properties and dried quality measurements for each trial Conventional Properties measured (standard) Dry Cross-sectional MC (AS/NZS 1080.1, AS/NZS 4787, AS 2796) MC gradient (AS/NZS 1080.1, AS/NZS 4787) Distortion (AS 2796) Surface checking (AS 2796) Internal checking (AS/NZS 4787) End split (AS/NZS 4787) Drying stress (AS/NZS 4787) Collapse (AS/NZS 4787) Vacuum Green Dry Figure 1. Schematic of sampling breakdown Moisture content Before vacuum drying, we removed 25 mm long cross sections for initial green cross– sectional MC determination while docking sample boards to 1.9 m, the maximum board length governed by the vacuum kiln. Moisture content was determined using the oven-dry method in accordance with AS/NZS 1080.1:1997 (Standards Australia, 1997). Final dried cross–sectional MC was determined from sections removed from each board, no closer than 400 mm from the board end. Two 25 mm long sections per board enabled cross- 6PDF Image | Evaluation of super-heated steam vacuum drying
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