International Organization for Standardization (ISO)
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ISO/TS 13475-2:2000
Scope
This part of ISO 13475 specifies the test conditions under which the acoustic emission levels of stationary audible warning devices may be obtained. It is applicable to sirens for use in outdoor public warning systems and sound signalling devices for use outdoors.
The purpose of this test code is to be able to produce reliable sound emission level measurements for stationary sirens to be used outdoors.
This part of ISO 13475 does not cover spoken messages and contains no recommendations for specific warning signals.
ISO/TS 13475-2:2000 history
2000ISO/TS 13475-2:2000 Acoustics - Stationary audible warning devices used outdoors - Part 2: Precesion methods for determination of sound emission quantities