It is intended to be applied as appropriate to such products depending on the product type and its conditions of use.

It is applicable to auditory signals of a fixed frequency used in general applications (also called "beep sound"), but not to variable frequency or melodic sounds.

It does not specify fire or gas leak alarm sounds or crime prevention alarm sounds (determined by other laws and regulation), electronic chimes, voice guides or other sounds particular to communication instruments such as telephones; nor is it applicable to auditory danger signals for public or work areas (covered in ISO 7731, ISO 8201 and ISO 11429).

It is not applicable to machines and equipment used for professional work; nor does it specify the sound pressure levels of auditory signals form the consumer products.

NOTE 1 For the determination of these levels, taking into consideration accessible design, see JIS S 0014.

NOTE 2 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 24500 : 2010 Ergonomics-Accessible design-Auditory signals for consumer products (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

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.

Two acoustic parameters of the audible emergency evacuation signal are defined: the temporal pattern and the required sound pressure level at all places within the intended reception area of the signal.

NOTE Recognition of the signal does not require the specification of its spectral content, which can be selected to satisfy specific site requirements.

The signal specified in this document is intended to be used in buildings, including but not limited to schools, hotels, residential buildings, public institutions and work places (such as factories and offices) The signal can also be used in outside areas.

ISO 8201:2017 is not applicable to warning signals, to signals for public disaster control or to alarm systems on board ships or in outdoor moving vehicles, such as police cars, fire engines and ambulances.

The individual signalling-system components of the signal are also out of the scope of this document.

ISO 7731:2003 does not apply to verbal danger warnings (e.g. shouts, loudspeaker announcements). ISO 9921 covers verbal danger signals.

Special regulations such as those for a public disaster and public transport are not affected by this International Standard.

devices can be obtained. The methods are applicable to sirens for use in public outdoor 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 used for warning outdoors.

This part of ISO 13475 does not cover spoken messages and contains no recommendations for specific warning

signals.