EVS-EN 13121-1:2021

This document gives requirements for specification and acceptance conditions of raw materials for GRP tanks and vessels with or without lining for storage or processing of fluids, factory made or site built, non-pressurized or pressurized, for use above ground. Together with the workmanship for the production of the pressure-bearing materials principles determined in EN 13121-3:2016, specification conditions and acceptance conditions for raw materials ensure that the tank or vessel will be able to meet its design requirements, particularly in terms of its chemical/thermal resistance and pressure and load supporting requirements.
NOTE Tanks and vessels for storage or processing of food, raw materials for food and potable water additionally will be in compliance with relevant EU directives and applicable national standards and regulations.