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See Chinese contents: NB/T 47052-2016 NB/T 47052-2016: Simple pressure vessels
This standard applies to mass-produced vessels, that meet the following conditions: a) The design pressure is less than or equal to 1.6 MPa; b) The design temperature is greater than or equal to -20 C; the maximum operating temperature is less than or equal to 150 C; c) The volume is less than or equal to 1.0 m3; d) The product of working pressure and volume is less than or equal to 1.0 MPa¡¤m3; e) The medium is air, nitrogen, carbon dioxide, inert gas, water vapor evaporated from medical distilled water, or a mixture of the above gases (vapors).
