Glossary

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B

BBA
British Board of Agrément – the premier independent quality assurance certification authority, which addresses relevant factors contributing to the fitness-for-purpose of building products.
British Standard
An official reference which may address either a recognised method-of-test or a code-of-practice.
BS
British standard, an official reference which may address either a recognised method-of-test or a code-of-practice.
BS EN
A British standard which is also identical to the relevant European Norm.
BS EN ISO
A British standard which is not only identical to the relevant European Norm, but also to the internationally recognised ISO standard.
Brush seal
Depending on the context, either: A seal element composed of nylon filaments, generally a minimum of 10mm long, and crimped into a metal spine – these are sometimes called ‘sweep action brushes’; or A short brush pile insert, fitted into an intumescent seal to provide smoke containment.
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