1.1 ,This specification establishes the requirements for seamless copper bus pipe and tube intended for use as electrical conductors.
1.1.1 ,The product shall be made from one of the following coppers, as denoted in the ordering information:2
| Copper | Previously | Type of Copper |
| , | , |
|
| , ,C10100 | ,OFE | Oxygen-free, electronic |
| , ,C10200 | OF | Oxygen-free without residual deoxidants |
| , ,C10300 | —, | Oxygen-free, extra low phosphorus |
| , ,C10400, C10500, | ,OFS | Oxygen-free, silver bearing |
| , ,C11000 | ,ETP | Electrolytic tough pitch |
| , ,C11300, C11400, | ,STP | Silver-bearing tough pitch |
| , ,C12000 | ,DLP | Phosphorized, low residual phosphorus |