ETSO-C103

• ED Decision 2003/10/RM found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

#### ETSO-C103 *ED Decision 2003/10/RM* ##### **Continuous Flow Oxygen Mask Assembly** **(for Non-transport Category Aircraft)** **1 Applicability** This ETSO gives the requirements which continuous flow aviation oxygen masks that are manufactured on or after the date of this ETSO must meet in order to be identified with the applicable ETSO marking. **2 Procedures** 2.1 General Procedures are detailed in CS-ETSO [Subpart A](#_DxCrossRefBm920220672). 2.2 Specific None. **3 Technical Conditions** 3.1 Basic 3.1.1 Minimum Performance Standard Standards set forth in the Society of Automotive Engineers, Inc., (SAE) Aerospace Standard (AS) 1224A „Continuous Flow Aviation Oxygen Masks„ dated September 15, 1971, revised January 15, 1978, as amended and supplemented by this ETSO: — Exception. Masks defined as open-port or restrictive-dilution masks without rebreathing or reservoir bag as defined by Aerospace Standard AS 1224A, paragraph 1.4(d) are not eligible for approval under this ETSO. 3.1.2 Environmental Standard As per Aerospace Standard AS 1224A, paragraph 3.4.1. 3.1.3 Computer Software None 3.2 Specific None. **4 Marking** 4.1 General Marking is detailed in CS-ETSO Subpart A paragraph 1.2. 4.2 Specific None. **5 Availability of Referenced Document** See CS-ETSO Subpart A paragraph 3.