English Translation Version for Reference Only Number:CTSO-C103 Date of approval:Jun 4 2019 CAAC Approved by:Xu Chaoqun China Civil Aviation Technical Standard Order This China Civil Aviation Technical Standard Order (CTSO)is issued according to Part 37 of the China Civil Aviation Regulations (CCAR-37).Each CTSO is a criterion which the concerned aeronautical materials parts or appliances used on civil aircraft must ply with when it is presented for airworthiness certification. Continuous Flow Oxygen Mask Assembly (For Non-Transport Category Aircraft) 1.Purpose. This China Civil Aviation Technical Standard Order (CTSO)is for manufacturers applying for Continuous Flow Oxygen Mask Assembly (For Non-Transport Category Aircraft)CTSO authorization (CTSOA). This CTSO prescribes the minimum performance standards(MPS)that Continuous Flow Oxygen Mask Assembly (For Non-Transport Category Aircraft)must first meet for approval and identification with the applicable CTSO marking. 2.Applicability. (1)Minimum Performance Standard.This China Civil Aviation Technical Standard Order (CTSO)prescribes the minimum performance standard that continuous flow aviation oxygen masks must meet in order -1- English Translation Version for Reference Only CAAC CTSO-C103 to be identified with the applicable CTSO marking.This CTSO has been prepared in accordance with section 21.353 of CCAR-21R4.Continuous flow aviation oxygen masks that are to be so identified and that are manufactured on or after the dat...