本文件规定了一种基于密度的方法，用于选择用机械紧固件制成的结构木材构件之间接缝的强度和刚度特性时使用的木块。本标准旨在与规定试验方法的试验标准结合使用。 假设木片符合相关条件，木材密度为正态分布，并报告任何偏差。 本文件仅适用于结构木材试样。 注:需要强调的是，木材密度只是影响接缝强度的特性之一。其他相关性能，例如，生长环尺寸和方向、韧性和硬度。

This document specifies a method based on density, for the selection of pieces of wood used in determining the strength and stiffness properties of joints between members of structural timber made with mechanical fasteners. It is intended to be used in conjunction with a test standard specifying a test method. It is assumed that the wood pieces are conditioned to the relevant conditions, that the wood density is normally distributed and that any deviations are reported. This document is applicable only to specimens of structural timber. NOTE It is emphasized that the wood density is only one of the properties that can influence the strength of a joint. Other relevant properties are, for example, growth-ring size and orientation, toughness and hardness.