FIELD: timber industry and may be used at through sequence certification of wood from growing trees to half-finished products in conditions of timber industry, logging, woodworking and also in engineering ecology and ecological wood-control at ecological valuation of territories.
SUBSTANCE: for testing they make with the help of a bore samples of cylindrical form of larger diameter then the largest transverse size of standard samples of rectangle form which are prepared from cylindrical samples and with the length of o less then the length of standard samples.
EFFECT: simplifies process of strengthening testing of wood with using cylindrical samples.
6 cl, 8 dwg
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