If oxygen-deficient atmospheres are suspected or can occur, use oxygen monitoring equipment to test for oxygen-deficient atmospheres. Review the liquid nitrogen Material Safety Data Sheet (MSDS).

 
  • 如果怀疑空气中缺氧或缺氧可能发生;使用氧检测设备来测试缺氧空气.;可以参考合适的材料安全数据表(MSDS)
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