What does the "must not be damped" marking on a package denote?

The marking "must not be damped" on a package indicates that the goods inside are sensitive to moisture. This sensitivity often pertains to items that may be damaged or altered in quality if exposed to water or high humidity. For instance, certain electronics, pharmaceuticals, and some types of food products can lose their integrity or effectiveness when they come into contact with moisture.

This marking serves as an important warning to handlers and transport personnel to take precautions to protect the package from water damage, ensuring that the items remain in optimal condition during transport and storage. The focus on moisture sensitivity assists in maintaining product quality and safety, which is crucial in many industries.