EN IEC 61788-23:2021

Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of cavity-grade Nb superconductors EN IEC 61788-23:2021

Publication date:   Jan 20, 2022

General information

60.60 Standard published   Oct 1, 2021

CENELEC

CLC/SR 90 Superconductivity

European Norm

17.220   Electricity. Magnetism. Electrical and magnetic measurements | 29.050   Superconductivity and conducting materials

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Scope

This part of IEC 61788 addresses a test method for the determination of the residual resistance ratio (RRR), rRRR, of cavity-grade niobium. This method is intended for high-purity niobium grades with 150 < rRRR < 600. The test method is valid for specimens with rectangular or round cross-section, cross-sectional area greater than 1 mm2 but less than 20 mm2, and a length not less than 10 nor more than 25 times the width or diameter.

Life cycle

PREVIOUSLY

PUBLISHED
EN IEC 61788-23:2018

NOW

PUBLISHED
EN IEC 61788-23:2021
60.60 Standard published
Oct 1, 2021

REVISED BY

PUBLISHED
EN IEC 61788-23:2024