CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 4-0: GUIDANCE FOR THE CORRELATION AND TRANSFORMATION OF THE ENVIRONMENTAL CONDITION CLASSES OF IEC 60721-3 TO THE ENVIRONMENTAL TESTS OF IEC 60068 - INTRODUCTION
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope and object
2 Reference documents
3 Overview
3.1 General remarks concerning IEC 60721
3.2 General remarks concerning IEC 60068
3.3 General remarks concerning IEC 60721-4
3.4 Applicability and purpose of the tests
3.5 Environmental testing
3.6 Recommended tests
4 Explanation of terms used in IEC 60721-4
4.1 Climatogram
4.2 Ambient
4.3 Correlation
4.4 Transformation
4.5 Environmental conditions
4.6 Environmental test severities
4.7 Product
4.8 Slope (used in the dynamic tables, stationary
vibration: random)
4.9 Classes
5 Environmental tests
5.1 Specialized products
5.2 Failure mechanisms
5.3 Acceptance criteria
5.4 Severities and test methods
5.5 Test programmes
5.6 Selection of tests
5.7 Environmental tests for storage and transportation
conditions
5.8 Environmental tests for 'in-use' condition
5.9 Test durations
5.10 Combined tests
5.11 Sequence of tests and composite tests
6 Examples of transformation guidance
6.1 Solar radiation
6.1.1 Actinic/photo-degradation
6.1.2 Thermal effects
6.2 Heat irradiation
6.3 Vibration testing
6.4 Shock testing
Aims to recommend the environmental tests which may be chosen to demonstrate the capability of a product to function or survive satisfactorily as specified in the relevant specification when subjected to the climatic and dynamic conditions given by IEC 60721-3.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 104 |
