The "Scientific instruments" market comprises all applications where vacuum is required for analyzing. In the last century there was a strong increase of different analyzing methods. In addition to R&D, other markets such as environmental analysis and production control have emerged. Various analytical methods like mass spectrometry, electron microscopy or x-ray applications are used to provide information about the objects to be investigated. Therefore, often customized vacuum solutions are needed, which can be engineered from Pfeiffer Vacuum together with the customer to develop the best vacuum performance.