NF EN ISO 4611-2008 Plastics Determination of heat and humidity, water splash and salt fog effects is an international standard that specifies the conditions under which plastic materials are exposed to heat and humidity, water splash and salt fog environments and the method of assessment. The standard applies to all forms of plastics, including standard specimens, finished products or components, and aims to evaluate the mass changes of materials under these environments, such as changes in mass, size, Appearance and physical performance. Detailed test equipment requirements, exposure conditions, specimen preparation, test procedures and result expression are provided, which are of great significance for the weathering resistance and chemical resistance assessment of plastic materials.