The Engineering Equipment and Materials Users Association (EEMUA) is a body, which develops standards for utilities, process and power plants, offshore platforms, storage terminals, and many industrial facilities. This latest edition of EEMUA 143 takes ISO 15614-8:2016 as the primary source with additions where the standard requires further clarification, or does not address the topic sufficiently for the user. These include: the constrictions of use of each joint type; requirements and practicalities for testing procedures and qualification of welders; recommendations on the preparation of tubes and tube-plates; guidance on maximum values on preheat and interpass temperatures; and additional controls on welding parameters and on the Inspection and Test Plan (ITP).
EEMUA 143 is designed to help identify the appropriate techniques for and limitations of tube end welding.
