1.1 *This standard covers basic safety and essential performance requirements for fixation devices designed to be attached to the head, face, or mouth of the patient and equipped with a means to secure and stabilize a tracheal tube or other airway device in its intended position. Devices within the scope of this standard may be provided with a wide variety of patient attachment mechanisms and tube locking mechanisms. 1.2 *Devices intended to secure tracheostomy tubes are outside the scope of this standard. NOTE These requirements are addressed in ISO 5366-11 and 5366-32 . 1.3 *Fixation devices intended to secure devices such as gastric tubes, feeding tubes and suction catheters are outside the scope of this standard. 1.4 Flammability of fixation devices, for example if used in the presence of certain flammable anesthetics, electrosurgical units, or lasers is a well-recognized hazard that is outside the scope of this standard. See Annex F for guidance.