本文件规定了木材固有特性和制造缺陷的性质和限制，以便对胶合板进行视觉评估，以分配给外观等级。 本文件适用于胶合板，其表面单板由硬木种类制成，包括热带和温带硬木。 它不适用于覆盖面板。 [1] 传统上是阔叶树种。

This document specifies the nature and limits of characteristics inherent in wood and manufacturing defects enabling the visual assessment of the plywood for allocation to an appearance class. This document applies to plywood, the surface veneers of which are made from hardwood species^[1] including tropical and temperate hardwood. It does not apply to overlaid panels. [1] Conventionally, broadleaved species.