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Moisture content fiber saturation point shrinkage and swelling specific
Preparation of timber for treatment
1 other sections not shown
air space air-seasoned average moisture content Boiled under vacuum Boulton process coal-tar creosote coast Douglas-fir computed conifers considerably cubic foot diameter eastern hemlock effect empty-cell treatment factors fiber saturation point final vacuum full-cell process full-cell treatment green gross absorption hardwoods heartwood timbers heating medium heating period inches inches of mercury increase initial wood temperature kick-back Lodgepole pine material maximum method mixtures obtained oven-dry percent percentage petroleum piling plants poles ponderosa pine pounds per cubic preliminary air pressure preliminary vacuum preservative oils preservative pressure preservative temperature pressure period rate of temperature red oak resin retention round timbers sapwood sawed timbers seasoned wood shows side penetration softwoods southern pine southern yellow pine species specific gravity specimens springwood steaming period steaming-and-vacuum summerwood table 23 temperature change tion tracheids treated wood treating conditions treating pressure tyloses vacuum period viscosity water solutions weight western larch zinc-chloride solution