An umbrella under rain, requiring the package be kept from wet.
An umbrella with raindrops above it means the package must be kept dry. It is an instruction about storage and transport rather than about the packaging's own water resistance.
In the ISO 780 handling series, an umbrella pictogram indicates that the package must be kept in a dry environment.
Contexts: Packaging
An open umbrella seen from the side, a dome with a short handle beneath, with two or more small drops falling above it.
Both are used in packaging contexts.
Both are built from objects, and both are used in packaging contexts.