Optics and optical instruments - Lasers and laser-related equipment - Determination of laser resistance of tracheal tube shafts (ISO 11990:2003); German version EN ISO 11990:2003— 17 стр.
Lasers and laser-related equipment - Determination of laser resistance of tracheal tubes - Part 1: Tracheal tube shaft (ISO/FDIS 11990-1:2011); German version FprEN ISO 11990-1:2011— 16 стр.