The Hiden HPR-90 system can be custom configured to suit small automobile bulbs through to fluorescent tubes. This system comprises a piercing unit, UHV manifold and sampling system, a triple filter quadrupole mass spectrometer and all associated control equipment on a mobile cart. The HPR-90 system package cracker chamber is available in a range of sizes, custom configured to accommodate the package size, and provide minimum dead volume/surface area for optimum sensitivity for analyses of fill gases and fill gas contaminants. One package cracker chamber, customized to accommodate a tubular style sealed package, is included as standard. Additional package cracker chambers, custom sized to suit various sample styles including, light bulbs, IC packages, and other sealed packages are offered as system options. The HPR- 90 system includes an automated gas sampling inlet including automatic leak valve, automatic bellows sealed isolation valve, automatic gate valve, capacitance manometer and valve control unit.