Ahead of the 8.7.4 leakage current testing and the 8.8.3 dielectric strength testing, all equipment or its parts influenced by the simulated climate undergo humidity preconditioning: set up complete or partially with transport covers detached, tool-free detachable parts detached but treated with the main part and tool-free access covers opened, in a cabinet at 93 percent relative humidity within 3 percent at the sample and a temperature within 2 K of a value T between 20 and 30 degrees, after being brought to between T and T plus 4 degrees for at least four hours; 48 hours for enclosures rated IPX0 and 168 hours for enclosures with higher ingress protection, extended where the risk management process indicates prolonged exposure to high humidity such as outdoor use; then reassembled.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.