Procedure for Sampling and Measurement of Engine and APU Generated Contaminants in Bleed Air Supplies from Aircraft Engines

Standard:
Scope:

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 to be fitted on civil and military aircraft during steady state (non-transient) operation only, in a ground level test bed. It includes 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 appropriate quantification levels.

Rationale:

This document is the required 5 year review and revision document. The descriptions of sampling and measurement techniques for a subset of bleed air contaminant marker compounds have been expanded and updated.

AKA:
  • SAE ARP 4418
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