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IEC 61788-23:2021 ED2

Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of cavity-grade Nb superconductors IEC 61788-23:2021 ED2

Publication date:   Aug 23, 2021

General information

99.60 Withdrawal effective   May 22, 2024

IEC

TC 90

International Standard

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

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Revised

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Scope

IEC 61788-23:2021 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

WITHDRAWN
IEC 61788-23:2018 ED1

NOW

WITHDRAWN
IEC 61788-23:2021 ED2
99.60 Withdrawal effective
May 22, 2024

REVISED BY

PUBLISHED
IEC 61788-23:2024 ED3