ICAO AN 16 – Vol. 2:2008

In Volume II of Annex 16, there are Standards which prohibit the intentional venting of raw fuel to the atmosphere from all turbine engine powered aircraft manufactured after 18 February 1982.

There are also Standards which limit the emission of smoke from turbo-jet and turbofan engines intended for propulsion at subsonic speeds and manufactured after 1 January 1983. For engines intended for supersonic propulsion, similar limitations apply to engines manufactured after 18 February 1982. Also included are Standards which limit the emission of carbon monoxide, unburned hydrocarbons and oxides of nitrogen from large turbo-jet and turbofan engines intended for subsonic propulsion and manufactured after 1 January 1986.

These Standards are based on an aircraft's landing and take-off (LTO) cycle. In addition to these Standards, Volume II contains detailed measurement procedures and instrument specifications and details the statistical methods to be used in assessing test results.