15/30332386 DC

DC - Direct Current

Electric - A general term for the flow of electric charge

Digital - A system that uses only 0s and 1s to transmit data

Analogue - A continuous signal in time with fluctuations in a measurable parametre to provide a signal

Telephone - A device used for communicating audio over long distances

Specification - A description of a product with the details of its attributes.

The British Standards Institution are a non profit making organisation, who produce standards and standard related services, for a variety of industries. The standards that they produce are used as a guideline or definition of the minimum levels certain services and product should reach. The standards are produced by BSI directly, following consultations and public enquiries. At shop.bsigroup.com, you can purchase a variety of standards. They stock documents for industries such as food and drink, engineering, building and construction, energy and utilities, transport and agriculture and farming. If you become a member of their site you can get huge discounts on their standards. They also offer training courses and conferences via their website, or you could take advantage of their online standards tools.