In 1960, which body named the SI unit tesla?

In 1960, the General Conference on Weights and Measures named the SI unit tesla.

The decision came at the 11th General Conference on Weights and Measures, the international body responsible for major decisions about measurement standards. The tesla was adopted as the SI derived unit of magnetic flux density, with the symbol T, in honor of Nikola Tesla. Slovenian electrical engineer France Avčin proposed the name.

A tesla measures magnetic flux density, commonly called the strength of a magnetic B-field. One tesla equals one weber per square metre and can also be expressed as one newton per ampere-metre. It is therefore not the SI unit of electric current, voltage, or general electrical power.

The 1960 decision also marked the formal launch of the modern International System of Units. The same conference adopted other named units, including the hertz, lumen, and lux. A frequent mix-up is to credit the International Electrotechnical Commission: that organization helped develop electrical standards, but the 1960 naming decision was made by the General Conference on Weights and Measures.