Sulfur hexafluoride gas should be stored in a cool,ventilated warehouse during daily storage.Keep away from fire and heat source.The temperature should not exceed 50℃.It should be stored separately from inflammable substances and oxidants,and should not be mixed.Closed operation is required,and local exhaust air is required.After special training,comply with the operating procedures.It is also recommended to wear a filter gas mask(half mask).Avoid contact with oxidants.Light load and light load when handling.

　　Bottled sulfur hexafluoride gas products for high pressure filling gas,should be used after decompression.There is a service life on the packaged gas cylinders,and the expired gas cylinders must be sent to the department for safety inspection before they can be used again.At the end of the use of each bottle of gas,the residual pressure in the bottle should be kept at 0.5MPa,and the minimum residual pressure should not be lower than 0.25MPa.The cylinder valve should be closed to ensure the quality of gas and the safety of use.Bottled gas products should be classified and stacked during transportation,storage and use.Inflammable gas and combust-supporting gas should not be stacked together,close to open fire and heat source,do not touch oil wax,do not explode,do not throw,do not impact,do not carry out arc or arc on the cylinder body,and do not rough handling.

　　At present,sulfur hexafluoride recovery and purification units use two main recovery and storage principles.A method using the principle of frozen liquefaction method,in the gas recovery,under a certain pressure,the use of refrigeration unit,so that the temperature of SF6 gas reaches the saturation steam temperature under the pressure.So that the gas starts to liquefy,and then the gas is stored as a liquid.The other is to use the principle of high-pressure liquefaction method,in the gas recovery,at that temperature,the use of compressor to increase the gas pressure,until the saturation steam pressure,so that SF6 liquefaction into liquid,and in the form of liquid,for storage.