National foreword
Brief history
Technical text
Preface of IEC Publication 691 (1980)
1. Scope
2. Object
3. Definitions
4. General requirements
5. General notes on tests
6. Classification
7. Marking
8. Documentation
9. Mounting requirements
10. Mechanical requirements
11. Electrical requirements
12. Temperature tests
13. Soldering test
14. Resistance to rusting
Annex A (normative) - Other IEC publications quoted in
this standard
Annex B (normative) - Application guide
National appendix W
National appendix X
Cooperating organizations