ASTM B9-25

1.2 The bronze trolley wire may be made in any of the three distinct alloys indicated in accordance with their increasing conductivities: Alloy 40, Alloy 55, Alloy 80.

1.3 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units given in this standard may be approximate.

1.4 This 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.