本文件规定了根据EN 545、EN 598、EN 969、EN 12842和EN 14525，用于保护球墨铸铁配件和附件的工厂应用热塑性酸改性聚烯烃（TMPO）涂层的要求和试验方法:-在工作温度高达50°C的条件下输送水（如饮用水、原水等）；或-在工作温度高达45°C的条件下输送废水；或-在工作温度高达50°C的条件下输送气体；-适用于外部环境，即所有常见腐蚀负荷的土壤、水和大气，特征见EN 545:2010的D.2.3。

This document defines the requirements and test methods for factory applied thermoplastic acid modified polyolefin (TMPO) coatings used for the protection of ductile iron fittings and accessories according to EN 545, EN 598, EN 969, EN 12842 and EN 14525: - conveying water (e.g. potable water, raw water, …) at operating temperature up to 50 °C; or - conveying waste water at operating temperature up to 45 °C; or - conveying gas at operating temperature up to 50 °C; - suitable for external environments, i.e. soils, waters and atmospheres of all common corrosion loads, characterized in D.2.3 of EN 545:2010.