Microphones and earphones for speech communications1 Scope This standard applies to the microphone part and earphone part of handsets, headsets or earsets for speech communications, and also to the microphone units and earphone units of built in handsets, headsets or earsets. The object of this standard is to establish definitions relating to these electroacoustic transducers, and to standardize the characteristics to be specified and the relevant methods of measurement. This does not exclude the use

Specific requirements related to use in an offshore unit

BS 8214 is applicable only to doors that are designed to provide fire resistance ratings of up to and including 2 h when tested in accordance with BS 476-22 or BS EN 1634-1

Annex B (informative) Additional information on the international cooperative tests

BS 6537 is a British standard that specifies the dimensions of the male to the female interface of a range of staple type connectors and adaptors used with rigid and flexible tubing in fluid power systems

BS EN 2791 discusses the dimensions and loads that depict a user-friendly idea of rod ends

Although there are differences between hollow fibre and flat sheet membrane manufacturers’ designs

Need to disable all (or any) incorporated tamper evident features before testing added

It draws attention to several end-uses

EN 20898-2

PD CEN/TS 17313 determines the preconditions

5 Colorimetric computation requirements

15N/J (for pulley grooves of effective width 15