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sklademVydáno: 2024-08-01
UNE EN IEC 61788-23:2024
Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of cavity-grade Nb superconductors (Endorsed by Asociación Española de Normalización in August of 2024.)
Superconductividad. Parte 23: Medida de la relación de resistencia residual. Relación de resistencia residual de los superconductores de Nb de grado de cavidad (Ratificada por la Asociación Española de Normalización en agosto de 2024.)
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| Označení normy: | UNE EN IEC 61788-23:2024 |
| Počet stran: | 38 |
| Vydáno: | 2024-08-01 |
| Status: | Norma |
Popis
UNE EN IEC 61788-23:2024
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.
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