KS B ISO 11990-2015(2020) Optics and optical instruments ― Laser and laser-related equipment ― Determination of laser resistance of tracheal tube shafts
2013KS B ISO 11990:2013 Optics and optical instruments ?; Lasers and laser-related equipment ?; Determination of laser resistance of tracheal tube shafts
2003KS B ISO 11990:2003 Optics and optical instruments-Lasers and laser-related equipment-Determination of laser resistance of tracheal tube shafts