BS EN 60068-3-4:2002

INTRODUCTION
1 Scope
2 Definitions
3 Procedures for the production and control of
   humidity
   3.1 General
   3.2 Injection of water (spraying)
   3.3 Injection of water vapour (steam)
   3.4 Saturation type
   3.5 Surface evaporation
   3.6 Aqueous solutions
   3.7 Dehumidification
   3.8 Control of humidity
4 Physical appearance of the effects of humidity
   4.1 Condensation
   4.2 Adsorption
   4.3 Absorption
   4.4 Diffusion
5 Acceleration
   5.1 General
   5.2 Acceleration factor
6 Comparison of steady-state and cyclic tests
   6.1 Test C: Damp heat, steady-state
   6.2 Test Db: Damp heat, cyclic test
   6.3 Sequences of tests and composite tests
7 Influence of test environment on specimens
   7.1 Change of physical characteristics
   7.2 Change of electrical characteristics
   7.3 Corrosion
Annex A (informative) Humidity effects diagram
Bibliography
Figure A.1

Specifies the necessary information to assist in preparing relevant specifications, such as standards for components or equipment, in order to select appropriate tests and test severities for specific products and, in some cases, specific types of application.