Method and device for testing a container for leaks

The invention relates to a method for testing a container for leaks, comprising: a first step in which a background noise of volatile organic compound in a chamber at atmospheric pressure is measured by a trace sensor of volatile organic compounds wherein the sensitivity is less than or approximate to 1ppb; an intermediate step pollution of the atmosphere inside the chamber is removed when the background noise measuring result is greater than a predefined threshold; and a second step in which a concentration of volatile organic compound is measured in the chamber at atmospheric pressure containing a container defining a bounded internal space in which a volatile organic compound is present, using the trace sensor of volatile organic compounds, which step includes comparing the background noise reading with the reading of the concentration of volatile organic compound, so that any leak from said container under test is detected. The invention also relates to a corresponding device.