Stainless Steel Gas Sampling Cylinder is made of high quality stainless steel,with needle stainless steel cylinder valve.Stainless Steel Gas Sampling Cylinder is of corrosion resistance,resistance to high pressure,no leakage characteristics,widely used in gas and liguid sampling and preservation in  petrochemical,electronic semi-conductor and scientific research & environmental protection and other fields.Must get the sampling cylinders drying and vacuum before sampling,drying temperature:80℃~100℃ and drying time not less than 30 minutes.If sampling accuracy requirement is high, 应用拟充装介质置换。