Fire detection and fire alarm systems - Fire alarm devices. SoundersBS EN 54 3: 2001 specifies the requirements, test methods and performance criteria for fire alarm sounders in a fixed installation intended to signal an audible warning of fire between a fire detection and fire alarm system and the occupants of a building. It is intended to cover only those devices which derive their operating power by means of a physical electrical connection to an external source such as a fire alarm system. This European standard

an interoperability test of the ISO/IEC 19794-5 face format might reference an application profile of its Token image

It covers face recognition applications requiring an exchange of face image data

This standard supplements the requirements laid down in IEC 60364-6-61

Also available:

but these examples are only illustrative and should not be taken to imply that the approaches described are pedagogically preferable

This document may be used for demonstration of compliance to the Council Directive with reference to human exposure to electromagnetic fields (EMF’s)

rods and sections of heat-resisting steels and nickel alloys

then special agreements between supplier and purchaser may need to be reached

Contents of BS EN 4536-2:

It is possible that future advances in resin technology would allow tanks and vessels to be considered for operating temperatures above + 120 °C

b) institutional and domestic areas: catering establishments

person or an organization