ARINC 585-2-1978 - 中外标准 - - 1978/4 - 现行
ISO 3891-1978 - 中外标准 - - 1978/1 - 废止
Provides specifications for four steps to be followed when describing the noise from a single aircraft operation. Provides a method for determining a noise-exposure measure for a succession of operations in a given time-interval. Discusses furthermore specific purposes for which these methods might be used, including certification, monitoring of noise levels and of noise-exposure, and land-use planning.