SAE AS 8026B:2019 pdf free
SAE AS 8026B:2019 pdf free.Crewmember Demand Oxygen Mask for Transport Category Aircraft
The professional flying population – male and female – presents a very wide range of facial type and sizes, thus the intended user of an oxygen mask must personally assure that a good fit can be achieved using the standard mask provided by the airplane operator. Aircraft operators should provide oxygen masks which offer an adequate fit and protective level to the widest possible range of their aircrew members. An individually fitted mask should be furnished when an aircrew member cannot be fitted by the standard masks regularly supplied.
The oxygen mask facepiece shall be of sufficient resilience, size and shape as to conform readily to clean shaven facial contours using no more pressure than is supplied by the mask suspension device. In determining that a mask provides an acceptable fit under this Aerospace Standard, a mask need not demonstrate compliance with 4.1.1, on test subjects with beards, heavy facial hair, or deep wrinkles. Published studies have shown that all known masks will leak where beards or heavy facial hair lies between the skin and sealing surface of the mask, or where deep wrinkling prevents a seal.
Store the oxygen mask facepiece of Type I and Type II masks in a container, mounted (panel or sidewall) or attached to a suspension device. The mask assembly must be donned using only one hand and operating in 5 seconds or less, without disturbing eyeglasses. After donning, the mask must not prevent immediate communication between crewmembers of the airplane intercommunications system.
Oxygen masks equipped with oxygen supply tubes designed for quick disconnection from the oxygen supply regulator shall incorporate a device to alert the user when his oxygen supply tube has been disconnected. When disconnected the device shall permit inhalation, but a noticeable resistance shall be introduced to indicate that disconnection has occurred. This paragraph does not apply if the quick disconnect device incorporates means to positively prevent inadvertent separation.SAE AS 8026B pdf free download.
