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Back Check

Back check is a function within the door closer that provides resistance to prevent the door leaf from being violently thrown open. The back check action can help prevent damage to the door, door frame, walls and door handles that can be caused when a door is kicked or thrown open rapidly.

Please Note: The back check facility can put additional strain on the door hinges - it is recommended that fire doors are fitted with 3 hinges, one at the top, one in the middle and one at the bottom.

Also see Adjustable Back Check

Backup Battery

Backup battery is the term used to describe a secondary power supply that will provide power in the event of a mains failure.

BAFE Certified

BAFE is a non-profit making organisation backed by the government and trading standards. Its primary goal is to improve standards within the fire safety industry. We have a nationwide network of BAFE certified fire extinguisher engineers and offer a range of fire extinguishers and equipment which are manufactured to BAFE standards.

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Ballast Lumen Factor

The ratio of the light output of the lamp in emergency operation compared with the light output of the same lamp operated by a reference ballast at its rated voltage and frequency.

Beam Detector

A beam detector is used to provide "wide area" smoke detection and is usually used in situations where it is either not practical or not cost effective to use traditional point detectors. A beam of light (usually infra-red) is projected across the area to be protected, any smoke entering the beam cause the beams power to fall, when the power falls to a predetermined level the detector will signal an alarm.

Also see End to End Beam Detector | Reflected Beam detector

BIM - Building Information Modelling

More than just a 3D model of a building, the Building Information Modelling process is about collating various information about materials, components, function, and purpose into a single, digital representation of a construction project. It is a way of working, with the thought of enabling full understanding of a building, and managing information in team environments.

BIM Objects

In order to support the increasing adoption of Building Information Modelling (BIM) workflows there is a growing movement of manufacturers creating and freely distributing 3D models of their products for use in BIM workflows. These models are BIM Objects: accurate and reusable digital representations of products. A proper BIM Object should represent the product in a visually recognisable and true-to-life manner, while also providing accurate behavioural data so that the digital model can be fully integrated into BIM plans, including things like detection zones and power usage whenever possible.


A chemical or situation that can cause contamination or disease and effect the health of humans or the environment.

BS 8599-1:2011 Workplace First Aid Kits

BS 8599-1:2011 is a British standard that was published on 30th June 2011. The standard specifies the minimum level that first aid kits should conform to. It gives guidelines for the correct quantities of plasters, bandages, sterile wipes etc. that should be included in the small, medium, large and travel kits. It also gives guidance on how many kits of which size would be required by an organisation.

Previously first aid kits were manufactured to the recommendations of the British Healthcare Trade Association HSE statutory 1, 10, 20 and 50 person first aid kits. These kits will be withdrawn on 31st December 2011 and kits conforming to the new standard will replace them.

BS 8599-1:2019 Workplace First Aid Kits

BS 8599-1:2019 is a new British Standard that was published on 10th January 2019 to replace the previous standard (BS 8599-1:2011). The standard specifies the minimum level that first aid kits should conform to and it gives guidelines for the correct quantities of plasters, bandages, sterile wipes, etc. that should be included in the small, medium, large and travel kits. It also gives guidance on how many kits of which size would be required by an organisation.

Changes made to the composition of the workplace kits include:

  • The exclusion of safety pins, to reduce the risk of needle stick injuries
  • The number of tape rolls have been increased in the medium and large kits
  • The number of medium dressings has been reduced and the number of large dressings has been increased

Please Note: Conforming with the British Standard is voluntary and not required by law.

BSI Group

BSI group is the national standards body of the UK and is a leading global provider of standards, management systems and regulatory approval information

The BSI group provide products testing, training and conferences and independent third-party certification of management systems.

Built in evacuation alarm feature

Ability to trigger sounders from the front of the panel.

Bulkhead Luminaire

A Bulkhead luminaire is a large emergency light that is designed to operate during a mains power failure.

Burton Safe Warranty

Burton Safe Warranty

BWF - Certifire Scheme

The BWF certifire fire door & doorset scheme was established by the fire door manufacturing industry to:

  • Guarantee the product through assessing and certificating the design and production process, testing its performance and carry out regular audit checks
  • Offer a clear, simple method of tracing a fire door back through all stages of manufacture to ensure the quality of manufacture and maintain the guarantee
  • Bring together fire door manufacturers, their suppliers, door convertors, retailers and installers to work in an alliance across the supply chain
  • Undertake a vigorous promotional campaign to raise awareness of the importance of fire doors and understanding of how they work

BWF - The British Woodworking Federation

The British Woodworking Federation (BWF) is recognised as the leading representative body for the woodworking industry and builders’ joinery and represents leading manufacturers, distributors and installers of doors, windows, conservatories, staircases, architectural joinery, timber frame buildings and engineered timber components.

It provides a complete range of services to its Members including expert advice on technical issues, employment and contractual law, health and safety, tax issues and environmental matters.