DIN EN ISO 8970-2020 木结构. 机械紧固件接头的测试. 木材密度要求(ISO 8970-2020); 德文版本EN ISO 8970-2020
Timber structures - Testing of joints made with mechanical fasteners - Requirements for timber density (ISO 8970:2020); German version EN ISO 8970:2020
This International Standard specifies a method, based on density, for the selection of pieces of wood used in determining the strength and stiffness properties of connections made with mechanical fasteners. It is assumed the wood density is normally distributed and that any devia