EN 61788-9:2005

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Requirements
6 Apparatus
7 Measurement procedure
8 Precision and accuracy of the test method
9 Test report
Annex A (informative) Additional information related
                       to Clauses 3 to 6
Annex B (informative) Measurements for levitation force of
                       bulk high temperature superconductors
Annex C (informative) Test report (example)
Annex ZA (normative) Normative references to international
                       publications with their corresponding
                       European publications
Bibliography

Specifies a test method for the determination of the trapped field (trapped flux density) of bulk high temperature superconductors. This International Standard is applicable to large grain bulk oxide superconductors that have well defined shapes such as round discs, rectangular, and hexagonal pellets. The trapped flux density can be assessed at temperatures from 4,2 K to 90 K. For the purpose of standardization, the trapped flux density will be reported for liquid nitrogen temperature.