1.1This specification establishes the requirements for seamless copper bus pipe and tube intended for use as electrical conductors.

1.1.1The product shall be made from one of the following coppers, as denoted in the ordering information:2

Copper UNS No.2 Previously Used Designation Type of Copper C10100 OFE Oxygen-free, electronic C10200 OF Oxygen-free without residual deoxidants C10300 - Oxygen-free, extra low phosphorus C10400, C10500, C10700 OFS Oxygen-free, silver bearing C11000 ETP Electrolytic tough pitch C11300, C11400, C11600 STP Silver-bearing tough pitch C12000 DLP Phosphorized, low residual phosphorus

1.2Unless otherwise specified, any one of the above coppers may be furnished.

1.3Units-The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.

1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.