Part 1: Factors of Weathering
Here the influences of weather, i.e. sunlight, temperature and humidity, are described. A special focus is given on the influence of light, heat and moisture on materials. How are they measured? How can their impact be estimated?
Part 2: Outdoor Weathering
The fundamentals of natural weathering are described. This includes static exposures in different reference climate zones, as well as various accelerated methods.
Part 3: Laboratory Weathering
In this section different kind of weathering laboratory instruments are described. What is the light source and its spectral power distribution? Which is the right instrument for which application?
Part 4: Weathering Testing and Basic Standards
Here it is described how the environmental stress factors are translated into artificial weathering test cycles. Purpose of standards for weathering testing are describes. Examples are given on the most common test methods for automotive, textiles, coatings, and other applications.
Part 5: Acceleration and Correlation
Principles are shown on how to accelerate weathering tests and what has to be considered to avoid unrealistic results. Mathematical/statistical procedures are described on how to compare and how to validate weathering results from different exposures.