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IEC 61788-23 Ed.2.0 Edition 08/2021
Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of cavity-grade Nb superconductors
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Abstract

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.

Status

Standard - Active

Origin

Technical Committee :
90 : Superconductivity

Implementation

start of the vote on the project      date of ratification (dor)   
end of the vote on the project      date of anouncement (doa)   
start of the vote on the final project      date of publication (dop)   
end of the vote on the final project      date of withdrawal (dow)   


Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference

Relations

Evolutions
IEC 60951-3 Ed.3.0 RLV
IEC 61788-23 Ed.3.0

Relations to older standards
IEC 61788-23 Ed.1.0

International Classification for Standards (ICS codes) :

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

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