为了考察充氮包装技术的防护性能，通过高低温湿热试验，测试了氮气介质与空气介质防护下器材表面的平均腐蚀速率与包装袋内氧含量的变化。结果表明：采用同一外包装材料时，氮气介质防护的平均腐蚀速率远远低于空气介质，其平均腐蚀速率低于NACE RP-0775-91标准中规定的轻度腐蚀一个数量级；充氮包装材料阻隔性能优异，包装袋内氧含量稳定（＜0.1%）。可见，充氮包装技术能对器材提供较好的防护。

Carbon steel samples were packaged in bags filled with nitrogen and air respectively; high-low temperature and hot-humid tests were carried out on the packaged samples; and the corrosion rate of the samples was measured to evaluate the protection property of nitrogen-filled packaging technology. The results showed that the〖JP2〗 corrosion rate of sample protected by nitrogen-filled packaging technology is much slower, and the average corrosion rate is in a order lower than the standard of mild corrosion(NACE RP-0775-91). The barrier property of nitrogen-filled packaging technology is perfect, the oxygen concentration in the packaging bag is stable (＜0.1%). It was concluded that the nitrogen-filled packaging technology can provide good protection for equipments.