(1) Any aluminum used for electrical purpose shall be of the highest purity commercially
available and shall be substantiated by submitting certificates of analysis stating the
percentages and nature of any impurities. Wrought aluminum and aluminum alloys for
electric purpose shall comply with BS 2898 [1970 (1985) Specification for wrought
Aluminum and aluminum alloys for electrical purpose. Bars, extruded round tube and
sections].