本欧洲标准规定了对具有或不具有热塑性衬里的GRP罐和容器的设计，制造，检验，测试和验证的要求，用于储存或加工液体，工厂制造或现场建造，非加压或加压至10巴，用于使用地上。其他要求载于规范性附件G. “EN 13121”这一部分中使用的术语“容器和罐”包括通过螺栓连接的管道工作点或其他设备的分支，以及直接与外壳结合的支架，支架或其他附件。 EN 13121的这一部分涵盖温度在-40°C至120°C之间的船只和坦克。 EN 13121的这一部分不包括: - 运输液体的坦克和船只; - 地下储罐; - 球形容器; - 不规则形状的船只和坦克; - 具有双重密封的坦克和船只，其中双层墙被认为是结构性的; - 有爆炸危险的坦克和船只，否则可能导致放射性的放射; - 单件纤维增强水箱的规格和冷水地面以上储存的截面结构（见EN 13280）

This European Standard gives requirements for the design, fabrication, inspection, testing and verification of GRP tanks and vessels with or without thermoplastics lining for storage or processing of fluids, factory made or site built, non-pressurized or pressurized up to 10 bar, for use above ground. Further requirements are presented in normative Annex G. The terms vessels and tanks as used in this part of EN 13121 include branches up to the point of connection to pipe work or other equipment by bolting and supports, brackets or other attachments bonded directly to the shell. This part of EN 13121 covers vessels and tanks subject to temperatures between - 40 °C and 120 °C. Excluded from this part of EN 13121 are: - tanks and vessels for the transport of fluids; - underground storage tanks; - spherical vessels; - vessels and tanks of irregular shape; - tanks and vessels with double containment where the double wall is considered structural; - tanks and vessels which are subject to the risk of explosion, or failure of which may cause an emission of radioactivity; - specification for fibre reinforced cisterns of one piece and sectional construction for the storage, above ground, of cold water (see EN 13280).