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sklademVydáno: 2024-07-04
BS EN IEC 61788-23:2024
Superconductivity Residual resistance ratio measurement. Residual resistance ratio of cavity-grade Nb superconductors
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Označení normy: | BS EN IEC 61788-23:2024 |
Počet stran: | 34 |
Vydáno: | 2024-07-04 |
ISBN: | 978 0 539 26878 2 |
Status: | Standard |
Popis
BS EN IEC 61788-23:2024
This standard BS EN IEC 61788-23:2024 Superconductivity is classified in these ICS categories:
- 17.220 Electricity. Magnetism. Electrical and magnetic measurements
- 29.050 Superconductivity and conducting materials
IEC 61788-23:2024 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.