The JAS GBS allows automated sampling of gases, stored in tedlar bags or gas sampling balloons, as well as gas cylinders, e.g. calibration gas cylinders. Sample transfer is carried out via a multi-position valve. Each gas sampling inlet is equipped with an in-line filter to avoid multi-position valve blocking. Connection to the GC can be made by means of 1/16” SS tube. The GBS is controlled via a special JAS Control Software.