本文件规定了在产品首次交付时，根据EN 13489的规定，使用不同的结构、尺寸和粘合剂（内部用作地板）确定多层拼花地板构件顶层分层的试验方法。 本文件规定了对试样进行三次老化处理（AT1、AT2和AT3）的试验方法。 本文件中描述的试验方法可用于确定顶层粘合质量，也可用于地板加热用镶木地板，并可用于识别粘合故障。 注1:对于三层构件的底层，即使经验有限，试验方法也适用。 AT1是一种适用于室内干燥条件下多层实木地板预后的治疗方法，适用于所有类型的实木地板胶。它可用于主要的地板下供暖系统。 AT2是一种合适的处理方法，可用于评估使用PVAc胶水进行顶层粘合的多层实木地板。 AT3是一种合适的处理方法，用于评估具有不同类型胶水（PVA-c除外）的多层实木地板的顶层粘合。 本文件不适用于多层拼花地板结构中使用的胶合板的粘合质量。 注2:本文件不允许评估在潮湿条件下使用的兼容性。

This document specifies a test method to determine the top layer delamination of multilayer parquet elements according to EN 13489 with different structures, dimensions and adhesives for internal use as flooring, at the time of the first delivery of the product. The document specifies a test method with three aging-treatments (AT1, AT2 and AT3) of the test specimens. The test method described in this document allows to determine a top layer bonding quality, also for parquet used on floor heating, and for the identification of bonding failure. NOTE 1 For bottom layer of three layers elements the test method is applicable even if the experience is limited. AT1 is a suitable treatment for the prognosis of multilayer parquets under dry indoor conditions and can be applied for all type of glues of parquets. It can be used for main underfloor heating systems. AT2 is a suitable treatment for the assessment of multilayer parquets with PVAc-glues for top layer bonding. AT3 is a suitable treatment for the assessment of multilayer parquets with different type of glues other than PVA-c for top layer bonding. This document does not apply to the bonding quality of plywood if it is in use in the multilayer parquet construction. NOTE 2 This document does not allow to estimate the compatibility of use in wet conditions.