B49-20

Standard Specification for Copper Rod for Electrical Purposes

B193-20

Standard Test Method for Resistivity of Electrical Conductor Materials

B258-18

Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors

NBS Handbook 100

Copper Wire Tables Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.