System and method for determining a concentration of a gas in a container

A method of determining a concentration of at least one gas in a container having at least one side with a flexible area, said method comprising:

• positioning said flexible area in relation to an optical sensor configured to be sensitive to said at least one gas;
• pulling a portion of said flexible area using a suction to arrange said portion of said flexible area in a position such that a space is provided underneath said portion of said flexible area;
• transmitting a light signal through said space in a direction crossing a direction in which the suction pulls said portion of said flexible area, by using said optical sensor;
• detecting the transmitted light signal using said optical sensor;
• and
• determining, based on said transmitted light signal, said concentration of said at least one gas in said container.

A system for determining a concentration of at least one gas in a container having at least one side with a flexible area, said system comprising:

• a measuring area arranged to receive said container;
• a suction configured to pull at least one portion of said flexible area to arrange said at least one portion of said flexible area in a position such that a space is provided beneath said at least one portion of said flexible area;
• a pressure sensor configured to measure a pressure in said suction when said at least one portion of said flexible area is pulled into the position;
• an optical sensor, configured to be sensitive to said at least one gas, is configured in relation to said measuring area to transmit a light signal through said space in a direction crossing a direction in which the suction pulls said at least one portion of said flexible area, and detect the transmitted light signal;
• and
• a controller configured to determine, based on said transmitted light signal, said concentration of said at least one gas in said container.