EEMUA has published Edition 6 of its highly respected guidance EEMUA Publication 159, ‘Above ground flat bottomed storage tanks – a guide to inspection, maintenance and repair’.
EEMUA 159 is considered to be the most comprehensive users’ guide available on above ground vertical cylindrical, steel storage tanks.
The publication sets out key features for planning and executing inspection, maintenance and repair works. It includes descriptions of the key tank components that require inspection and maintenance, degradation mechanisms and common inspection techniques, and details on tank lifting.
The newly released Edition 6 includes three integrity assessment levels of increasing complexity. There are revised chapters on tanks and their components, degradation mechanisms and failure modes, general inspection techniques and interpretation of inspection data, tank foundations and hydrotesting.
The new edition also contains guidelines on change of service and guidance on new inspection methods and technologies including robotics and drones. The guidelines for hydrotest exemption for major repairs and the remaining life calculations for bottom pitting have also been updated.