IEC 61788-23:2018 addresses a test method for the determination of the residual resistance ratio (RRR) of cavity-grade niobium. The test method should be valid for specimens with rectangular or round cross-section, cross-sectional area greater than 1 mm<sup>2</sup> but less than 20 mm<sup>2</sup>, and a length not less than 10 nor more than 25 times the width or diameter.
WITHDRAWN
EN IEC 61788-23:2018
99.60
Withdrawal effective
Sep 27, 2024
PUBLISHED
EN IEC 61788-23:2021