Standards are essentially recognised codes of best practice. They are issued by National
standards bodies such as BSI in UK, or ANSI in USA, but there is increasing international co-ordination
through CEN and CENELEC in the EU and through ISO and IEC internationally.
Many UK BS standards are now BS EN implementations of European EN standards. In some cases these are, in
their turn, implementations of ISO or IEC standards.
To a large extent, EN standards are really the only standards worth bothering with these days, both for a UK, EU
and international market.
A type standards cover general principles. There are not very many of these. B type standards cover generic
aspects of machinery safety, for example guarding, use of light curtains, electrical equipment, ladders and
walkways. C type standards are for specific types of equipment. They make extensive reference to B type
There is now a very comprehensive range of EN standards, with specific C type standards covering many types of
machinery. Generic B type standards cover pretty much all aspects of safety related machinery design for
those products without C type standards.
There are very many standards, both B and C type. Finding your way through the maze of standards and finding the
ones which are relevant to you can be difficult and time consuming. Safemech has much experience of
selecting and interpreting standards for a wide variety of machinery. We have a large library of standards and so
can assist you with selecting the requirements and references which allow you to design a safe machine that meets