JRC-Geel has the intention to set up a framework contract for supply of technical gasses, rental of gas recipients and other services. The contract consists of two main parts: The supply of compressed gas in cylinders or frames, including the delivery and return transport and the rental of the cylinders and/or frames. The contractor is also asked to foresee an application allowing to track the cylinders and the rental of fixed and mobile tanks for the storage of liquefied gasses and the supply in bulk of liquefied Nitrogen and Argon. Some of these tanks are to be equipped with an evaporator and with a remote monitoring system, warning the contractor automatically of the need for refill. Part 2 of the contract : The supply of liquefied Nitrogen in bulk within a secured perimeter and the rental of fixed and/or mobile tanks for the storage of liquefied Nitrogen and the supply in bulk of liquefied Nitrogen. This tank (or mobile tanks) is to be equipped with a remote monitoring system, warning the contractor automatically of the need for refill.