ANSI S12.50 : 2002

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Determination of sound power levels
5 Noise declaration according to ISO 4871
6 Selection of the appropriate International
  Standard for determination of sound power
  levels
Annexes
Annex A (normative) - Synopses of basic International
        Standards on sound power level determinations
Annex B (informative) - Acoustical test environments
Annex C (informative) - Factors affecting the choice of
        measurement method
Annex D (informative) - Guidance on the choice of
        appropriate International Standard for
        determining the sound power level of
        a sound source
Bibliography

Provides guidance for the use of a series of nine International Standards describing various methods for determining the sound power levels from all types of machinery and equipment. Gives: - brief summaries of these basic International Standards; - guidance on the selection of one or more of these standards which are appropriate to any particular type.