Which of the following is a recommended humidity level for storage according to SKF?

The recommended humidity level for storage according to SKF is typically around 50% at 68°F. This level is ideal because it helps prevent the formation of condensation and rust on metal parts, which can occur at higher humidity levels. Maintaining a stable environment with controlled humidity is essential for preserving the integrity of stored items, particularly bearings and other precision components that are sensitive to environmental conditions.

In this case, the choice reflecting 75% humidity at 68°F may contribute to an increased risk of corrosion and degradation of materials over time. Thus, the recommendation for optimal storage is oriented towards lower humidity levels, ensuring that storage environments are conducive to the longevity and reliability of the components being stored.