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International Standard Category: Testing of metals in general

GB/T 25897-2010    Superconductivity:Residual resistance ratio measurement of Nb-Ti composite superconductors
超导电性:铌-酞复合超导体剩余电阻比测定;
Category No.:77.040.01 Valid Status:superseded
Issued Organization:AQSIQ Issued Date:2011-1-10
Implemented Date:2011-5-1 Abolished Date:
Superseded Standard.:GB/T 25897-2020 Residual resistance ratio measurement—Residual resistance ratio of Nb-Ti and Nb3Sn composite superconductors
Superseded Date:2021-7-1
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