EN 351的这一部分在防腐剂渗透方面确定了防腐处理木材的分类，并给出了对保留分类的指导。这些应用于指定特定产品的防腐处理的基础。 EN 351的这一部分提供了在制定防腐处理规范或产品标准时由说明者使用的术语。它本身不是治疗规范。 EN 351的这一部分适用于生产防腐处理的实木，包括胶合层压木材，适用于EN 335-1中使用等级规定的使用条件。它不适用于任何后续对待处理木材的检查。 EN 351的这一部分适用于保护木材免受木材破坏和木材破坏的真菌，昆虫和海洋生物的攻击。 EN 351的这一部分不考虑处理过的木材的其他特性，例如气味，腐蚀性和与其他材料的相容性，也不考虑健康，安全和环境方面的任何性质。 EN 351的这一部分不适用于用于消除或控制现有真菌或昆虫侵染的木材使用的配方的木材处理

This part of EN 351 establishes classification for preservative-treated wood in terms of preservative penetration and gives guidance on a classification of retention. These should be used as a basis for specifying preservative treatments for particular products. This part of EN 351 provides terminology to be used by the specifier when preparing a preservative treatment specification or product standard. It is not a treatment specification in itself. This part of EN 351 is applicable to the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions defined by the use classes in EN 335-1. It does not apply to any subsequent examination of treated wood in service. This part of EN 351 is applicable to the protection of wood against attack by wood-destroying and wood-disfiguring fungi, insects and marine organisms. This part of EN 351 does not consider other properties of treated wood, for example odour, corrosiveness and compatibility with other materials, nor does it consider any properties from the health, safety and environmental point of view. This part of EN 351 does not apply to wood treated with formulations that are applied to timber in service to eliminate or control an existing fungal or insect infestation, or to prevent attack by sapstain fungi, or insects in green timber.