This European Standard specifies the requirements, composition, properties, sampling, test methods and conditions of delivery for seamless round copper tubes.It is applicable to tubes having an outside diameter from 6 mm up to and including 267 mm for:- distributing networks for hot water and cold water;- hot water heating systems, including panel heating systems (under-floor, wall, overhead);- domestic gas and liquid fuel distribution;- waste water sanitation.It is also applicable to seamless round copper tubes intended to be pre insulated before use for any of the above purposes.