British Standards (BS) are the standards produced by the BSI Group which is incorporated under a royal charter and that is formally designated as the national standards body (NSB) for the UK. The BSI Group produces British Standards under the authority of the charter, with one of their objectives being to:Set up standards of quality for goods and services, and prepare and promote the general adoption of British Standards and schedules in connection therewith and from time to time to revise, alter and amend such standards and schedules as experience and circumstances require.