DIN EN ISO 11990:2018 激光和激光相关设备. 气管轴和气管管套耐激光性的测定(ISO 11990-2018); 德文版本EN ISO 11990-2018
Lasers and laser-related equipment - Determination of laser resistance of tracheal tube shaft and tracheal cuffs (ISO 11990:2018); German version EN ISO 11990:2018