prEN 33/WI131的第1部分规定了性能要求和方法，用于评估所有形式的垫圈和挡风雨条纹的特性，以及玻璃和防风雨和密封的目的。相关要求适用于所有材料的垫片和耐候条纹。本欧洲标准不适用于密封剂，胶泥或油灰或任何以液体或粘稠形式挤出到最终使用场所的材料

This part 1 of prEN 33/WI131 specifies the performance requirements and method for the assessment of the properties of all forms of gaskets and weatherstripping both for glazing and for draft and weather sealing purposes. The relevant requirements are applicable to gaskets and weatherstripping of all materials. This European Standard is not applicable to sealants, mastics or putties or any such materials which are extruded in liquid or viscous form into the final place of use.