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Alternatively, the ignition-limiting threshold is determined by performing a proper ignition test described in BSI PAS 95:2011 Hypoxic air fire prevention systems specification. [4] Smoke detectors are installed in protected volumes because, similar to gas suppression systems, hypoxic air does not prevent smoldering and pyrolyzing processes.
The Kitemark is a UK product and service quality trade mark which is owned and operated by the British Standards Institution ().. According to BSI, Kitemark certification confirms that a product or service's claim has been independently and repeatedly tested by experts, meaning that purchasers can have trust and confidence in products and services that are BSI Kitemark certified.
BS 8418 Design, Installation, Commissioning and Maintenance of Detection-Activated Video Surveillance Systems (VSS) BS 8442 Miscellaneous road traffic signs and devices - requirements and test methods; BS 8484 for the provision of lone worker device services; BS 8485 for the characterization and remediation from ground gas in affected developments
An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning system. [1] An air handler is usually a large metal box containing a blower , furnace or A/C elements, filter racks or chambers, sound attenuators , and dampers . [ 2 ]
The BSI Group as a whole does not produce British Standards, as standards work within the BSI is decentralized. The governing board of BSI establishes a Standards Board. The Standards Board does little apart from setting up sector boards (a sector in BSI parlance being a field of standardization such as ICT, quality, agriculture, manufacturing ...
BSI Group headquarters building in Gunnersbury, West London, featuring the BSI Group logo. BSI was founded as the Engineering Standards Committee in London in 1901. [5] [2] It subsequently extended its standardization work and became the British Engineering Standards Association in 1918, adopting the name British Standards Institution in 1931 after receiving a Royal Charter in 1929. [2]
BSI Group pioneered the PAS format. Under the BSI model, any organization, association or group who wish to document standardized best practice on a specific subject can commission a PAS, subject to the BSI acceptance process. A British Standard and a PAS must reach full consensus between all stakeholders on technical content. The timescale for ...
In heating, ventilation, and air conditioning (HVAC), testing, adjusting and balancing (TAB) are the three major steps used to achieve proper operation of heating, ventilation, and air conditioning systems. TAB usually refers to commercial building construction and the specialized contractors who employ personnel that perform this service.