The text of this standard, which exists in three equivalent versions (English, French, German), has been drawn
up under the responsibility of A ECMA (Association 16uropéenne des Constructeurs de Matérkl Aérospatial)
and has received the agreement of Official Services concerned.
ltis published on yellow paper as a draft European Standard intended to receive, under the same presentation and
sccording to its own rules, the approval of CEN (European Committee for Standardization).