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Procedure for Sampling and Measurement of Aircraft Propulsion Engine and APU Generated Contaminants in Bleed Air

E-31B Bleed Air Committee
  • Aerospace Standard
  • ARP4418B
  • Current
Published 2018-11-12 by SAE International in United States

This ARP outlines recommended practices to quantify the concentrations of a subset of bleed air contaminant marker compounds on an aircraft propulsion engine or APU prior to delivery and installation on civil and military aircraft. Testing is specified during steady state (non-transient) operation only, in a ground level test bed. Included are recommended test setup, test procedures, techniques for sampling ambient air and bleed air, and one or more specific analytical methodologies for each of the suggested bleed air contaminant marker compounds at quantification levels, given practical constraints.

Measurement Data and Reference Values for Compounds Potentially Found in Aircraft Engine Bleed Air

E-31B Bleed Air Committee
  • Aerospace Standard
  • AIR7521
  • Current
Published 2018-10-09 by SAE International in United States
This document summarizes published measurement data and reference values for marker chemical compounds listed in ARP4418 (see 2.1.1) potentially found in aircraft engine bleed air.
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Procedure for Sampling and Measurement of Engine and APU Generated Contaminants in Bleed Air Supplies from Aircraft Engines

E-31B Bleed Air Committee
  • Aerospace Standard
  • ARP4418A
  • Historical
Published 2008-01-07 by SAE International in United States
Aircraft propulsion engine and APU manufacturers shall demonstrate that air provided to the aircraft cabin is of acceptable quality. This ARP provides the basic information required to perform an engine bleed air quality certification test. This document provides the recommended levels and describes the measurement procedures required for the quantification of gaseous and particulate contaminants, which may be present in aircraft engine bleed air.
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