MASSIMO BREGA / EURELIOS / SCIENCE PHOTO LIBRARY MASSIMO BREGA / EURELIOS / SCIENCE PHOTO LIBRARY
Studying acid corrosion of metals. Researcher wearing a gas mask during an experiment on the corrosion of metals. Here, he is holding a metal object that is about to be placed in sulphuric acid. The gas mask protects the researcher from the dangerous sulphuric acid fumes. This test is used to check how corrosion-resistance an object is before use. This object is intended for use in the oil industry.
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