scope:

This standard applies to water chilling systems, pumps and similar operating machines and parts thereof, which for reasons of size or operating characteristics are more practically evaluated in situ. Furthermore, this standard provides an indication of occupational exposure.

Purpose.

The purpose of this standard is to establish for machinery installed in a mechanical equipment space: definitions; instruments; sound measurement and calculation procedures; machinery sound specifications and data presentation; system operating conditions; and conformance conditions. It is not the intent of this standard to be used for the sound rating of equipment.

Intent.

This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users.

Review and Amendment.

This standard is subject to review and amendment as technology advances.