ÖNORM M 7323

This Austrian Standard shall be applied to the installation of stationary pressure vessels with a pressure-volume product over 3000 bar for the storage of gases or gas overlaid ingredients which are subject to the Act on Pressure Vessels. Concerning the installation of pressure vessels intended for storage of LPG for burning purposes according to ÖNORM C 1301, the present Standard is only applicable for a vessel volume exceeding 13000 litres. Hereinafter, these pressure vessels are considered including their equipment necessary for operation and referred to shortly as "vessels". For vessels with a lower pressure-volume pressure, this standard can be applied analogously. Product evaporators and buffer vessels are not used for the storage of gases according to this Standard and are, therefore, not covered by the scope of this ÖNORM. For the installation of vessels for deep frozen liquefied gases, the additional relevant requirements of ÖNORM EN ISO 21009-2 and/or the requirements of ÖNORM EN 14197-3 apply. The requirements of the present ÖNORM shall be applied to deep frozen liquefied gases only if they are not in contradiction with the requirements of the European Standards mentioned above or if they are declared mandatory by national provisions.