This document defines the procedures for noise control of primarily open plants and the requirements on equipment suppliers for reporting and testing of noise.

It is applicable to the following:

—     specification of procedures for noise control during engineering of a new plant and modification/extension of existing plants (construction and commissioning noise procedures are outside the scope of this document);

—     definition of responsibilities of parties involved, viz. “end-user”, “engineering contractor” and “equipment supplier”;

—     description of general procedures to arrive at noise requirements for individual equipment, based on overall noise requirements for the plant.

Input to purchase specifications is presented in Annex A.

A schematic flowchart, reviewing the noise control process, is presented in Annex B and a summary of action items is presented in Annex C.

An example of an equipment noise data sheet is presented in Annex E.