EEMUA, the Engineering Equipment and Materials Users Association, has published Edition 4 of its tank guidance EEMUA Publication 159, “Above ground flat bottomed storage tanks – a guide to inspection, maintenance and repair”. EEMUA 159 has appendices offering additional guidance on how to perform assessment calculations on tank components, illustrated by means of sample calculations, as well as on repair methods. There are also numerous new sections, such as on snow loading, planar tilt and overplating.
EEMUA 159 is intended primarily to assist in the establishment of essential inspection and maintenance requirements for aboveground vertical cylindrical, steel storage tanks. However, for such requirements to be properly interpreted and understood, comprehensive guidance is given on many key design features, on common problems experienced during operation and on repair methods. The new edition also introduces the theory of risk based inspection (RBI) and reliability centred maintenance (RCM) - the “probabilistic preventive maintenance methodology”. The different and non-harmonised methodologies of RBI and RCM are proposed and implemented in EEMUA 159. The process is time based, condition based and reactive.
For more information, go to EEMUA.org.