Any purge method should be repeated as often as required to be certain a flammable mixture cannot be formed upon introducing hydrogen or air to the system. 任何凈化方法都應該盡量多重復幾次，直到確定在把氫或空氣引入系統時(shí)不會(huì )形成可燃混合物為止。
Adequate ventilation will help reduce the possible formation of flammable mixtures in the event of a hydrogen leak and will also eliminate the potential hazard of asphyxiation. 充分通風(fēng)有助于在氫泄漏的情況下減少可燃混合物形成的機會(huì )，同時(shí)還排除了潛在的窒息的危險。
