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Nitrogen gaseous and liquid have to be produced according to requirements of GOST 9293-74 "Nitrogen gaseous and liquid. Specifications." on the production schedules approved in accordance with the established procedure. Requirements of GOST 9293-74 extend to the gaseous and liquid nitrogen received from atmospheric air by way of deep cooling. Gaseous nitrogen intends for creation of the inert atmosphere by production, storage and transportation of easily oxidized products, at high-temperature processing of the metals which are not interacting with nitrogen, for preservation of the closed metal vessels and pipelines and other purposes.
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