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

This part of ISO 6185 is applicable to the following types of boats intended for use within the operating temperatures of – 20 °C to + 60 °C:

Outsourcing/subcontracting to reduce fixed cost overheads

functions and conditions of equipment and facilities in simple pictures

and consistent operation of laboratories

their shape and their positions

b) a service definition

radiation characteristics as well as electrical

The interchangeability

Annex D (informative) Stainless steels for cold heading and extruding

and studs with B

Screeds are designated “levelling screeds” where they are to receive a final flooring and “wearing screeds” where they serve to provide the finished surface

Why should you use BS 6880-3 - Low temperature hot water heating systems