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International Electrotechnical Commission, 08/01/2021
Publisher: IEC
File Format: PDF
$117.00$234.00
Published:01/08/2021
Pages:62
File Size:1 file , 1.8 MB
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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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