I.S. EN 61788-2:2007

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Requirements
6 Apparatus
   6.1 Reaction mandrel material
   6.2 Reaction mandrel construction
   6.3 Measurement mandrel material
   6.4 Measurement mandrel construction
   6.5 Measurement set up
7 Specimen preparation
   7.1 Specimen mounting for reaction heat treatment
   7.2 Reaction heat treatment
   7.3 Specimen mounting for measurement
   7.4 Specimen bonding
8 Measurement procedure
9 Precision and accuracy of the test method
   9.1 Critical current
   9.2 Temperature
   9.3 Magnetic field
   9.4 Specimen support structure
   9.5 Specimen protection
10 Calculation of results
   10.1 Critical current criteria
   10.2 n-value (optional calculation, refer to A.7.2)
11 Test report
   11.1 Identification of test specimen
   11.2 Report of I[c] values
   11.3 Report of test conditions
Annex A (informative) Additional information relating to
         Clauses 1 to 10
Annex B (informative) Strain effect of Nb[3]Sn conductors
Annex C (informative) Self-field effect
Annex D (normative) One-mandrel method
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography

Defines a test method for the determination of the d.c. critical current of Nb3Sn composite superconductors which are fabricated by either the bronze process or the internal tin diffusion process and have a copper/non-copper ratio larger than 0,2.