Standard

IEC 61788-23:2021 ED2

Revised

Note: This standard has a new edition: IEC 61788-23:2024 ED3

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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.

Document information

  • Standard from IEC
  • Published:
  • Withdrawn:
  • Edition: 2
  • Version: 1
  • Document type: IS
  • ICS 17.220
  • ICS 29.050
  • ISO TC TC 90

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