BS 4520-1:1969

Заменен

Specification for enamelled copper conductors (polyurethane base with solderable properties)., Round wire

Заменен на

BS 6811-3-3.1:1987

ICS

77.120.30 Copper and copper alloys / Медь и медные сплавы

29.050 Superconductivity and conducting materials / Проводниковые материалы