Chemical Safety Board Bulletin互联网档案馆的存檔，存档日期2016-03-04. This is a government summary of accidental 80 nitrogen inhalation deaths, mostly in occupational circumstances. For a presentation form with additional material, see [1]互联网档案馆的存檔，存档日期2016-03-04.
Chemical Safety Board Bulletin互联网档案馆的存檔，存档日期2016-03-04. This is a government summary of accidental 80 nitrogen inhalation deaths, mostly in occupational circumstances. For a presentation form with additional material, see [1]互联网档案馆的存檔，存档日期2016-03-04.
