该欧洲标准适用于基于聚合物改性的水泥质砂浆，分散体和反应树脂涂层的所有液体不透水产品，用于陶瓷瓷砖下方，用于墙壁和地板上的外部瓷砖安装和游泳池。 本欧洲标准给出了关于产品的术语，并规定了与瓷砖粘合剂相关的液体不透水产品的测试方法和性能要求的值。 本欧洲标准规定了陶瓷瓷砖下面的液体不透水产品的一致性评估和分类和指定。 本欧洲标准不包含与不透水产品相结合的陶瓷砖和砂浆的设计和安装建议。 注1:液体不透水产品也可以在其他类型的瓷砖（天然和结块石头等）之下使用，不会对这些材料产生不利影响。 注2本欧洲标准的用户应熟悉正常的实验室实践。本欧洲标准不旨在解决与其使用相关的所有安全问题。用户有责任建立适当的健康和安全措施

This European Standard applies to all liquid-applied water impermeable products, based on polymer modified cementitious mortars, dispersions and reaction resin coatings, used beneath ceramic tiling, for external tile installations on walls and floors and in swimming pools. This European Standard gives the terminology concerning the products and specifies the test methods and the values of performance requirements for liquid-applied water impermeable products associated with tile adhesives. This European Standard specifies the evaluation of conformity and the classification and designation of liquid-applied water impermeable products beneath ceramic tiling. This European Standard does not contain recommendations for the design and installation of ceramic tiles and grouts in combination with water impermeable products. NOTE 1 Liquid-applied water impermeable products may also be used beneath other types of tiles (natural and agglomerated stones, etc.), where they do not adversely affect these materials. NOTE 2 The user of this European Standard should be familiar with normal laboratory practice. This European Standard does not purport to address all the safety problems associated with its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with any European and national regulatory conditions.