Sound system equipment. Methods for measuring and specifying the performance of sounders (electroacoustic transducers for tone production)1 Scope and object This International Standard is applicable to sounders, which are treated as entirely passive electroacoustic transducer elements. Piezoelectric diaphragms, which are the principal components of piezoelectric sounders, are also included. Buzzers which are sound sources with built in electric circuits are excluded. The object of this standard is to standardize the definitions relating to these electroacoustic transducers, and to list

— weldable normal and higher strength hot-rolled steel plates

CZR or SIM modifiers

cladding units and their fixings

BS EN ISO 14161:2009 replaces BS EN ISO 14161:2001 which has been withdrawn

improving quality and achieving profitability on the venture

Annex CC (informative) Number of cycles

The aim of ISO 21500 is the following:

and copper accelerated acetic acid salt spray (CASS) tests of metallic materials

Manufacturers of metal products

This will ensure the formulation of the abbreviated terms and symbols so that there is uniformity of terminology across the industry

Local authority or Environmental Agency

Why should you use PAS 8850