The Circuit Designer's Companion - diagramas.diagram...

326 The Circuit Designer’s CompanionAppendixStandardsStandards are indispensable to manufacturing industry. Not only do they allowinterchangeability or interoperability between different manufacturers’ products, butthey also represent a distillation of knowledge about practical aspects of technology −how to make measurements, what tests to use, what dimensions to specify and so on.Each standard is the result of considerable work on the part of a collection of experts inthat particular field and is therefore authoritative; notwithstanding which, any standardin a fast-changing area will be subject to revision and amendment as the technologyprogresses.This appendix lists a few of the more relevant British and international standards,both those which have been referenced in the text of this book and some which theauthor feels to be of particular interest. The catalogues of the various standards bodies,updated yearly, give a full list of the available and current standards and are essentialfor the library of any development department. Although only BS and IEC publicationsare mentioned here, for the sake of brevity, there are of course many other standardssources which you may need to consult for a particular application.British standardsThese are available fromBritish Standards InstitutionCustomer Services389 Chiswick High RoadLondon W4 4ALUKTel +44 (0)208 996 9001 e-mail cservices@bsi-global.comwebsite www.bsi-global.comSome BS standards are related to, equivalent to or identical to other European orinternational standards. This is indicated where appropriate. Where a British Standard’snumbering starts “BS EN” this means that it is identical to the equivalent Europeandocument produced by CENELEC, which itself may well be identical to the IEC sourcedocument, although this is not assured.BS no.Related, equivalent or identical standardsBS 613Specification for components and filter units for electromagnetic interference suppression