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EN 61788-4:2016

Superconductivity - Part 4: Residual resistance ratio measurement - Residual resistance ratio of Nb-Ti and Nb3Sn composite superconductors EN 61788-4:2016

Publication date:   Aug 16, 2016

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99.60 Withdrawal effective   Apr 24, 2023

CENELEC

CLC/SR 90 Superconductivity

European Norm

17.200.20   Temperature-measuring instruments | 29.050   Superconductivity and conducting materials

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IEC 61788-4:2016 specifies a test method for the determination of the residual resistance ratio (RRR) of Nb-Ti and Nb<sub>3</sub>Sn composite superconductors with Cu, Cu-Ni, Cu/Cu-Ni and Al matrix. This method is intended for use with superconductor specimens that have a monolithic structure with rectangular or round cross-section, RRR value less than 350, and cross-sectional area less than 3 mm<sup>2</sup>. In the case of Nb<sub>3</sub>Sn, the specimens have received a reaction heat-treatment. This fourth edition cancels and replaces the third edition published in 2011. This edition constitutes a technical revision.

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EN 61788-4:2011

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EN 61788-4:2016
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EN IEC 61788-4:2020