Question

conservation of metals and non-metals​

Answer 1

Answer:

Particularly valuable items can be placed in sealed micro-climate containers with an inert gas such as nitrogen or argon. Metals with active corrosion fair better with lower relative humidity: copper or copper alloy objects up to 35% RH and iron objects 12-15% RH.

Conservation and restoration of metals is the activity devoted to the protection and preservation of historical and archaeological objects made partly or entirely of metal.