British Standards Institution

With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.

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Documents by this publisher

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Series details	Title	Year	Status
BS EN 446:1997	Grout for prestressing tendons - grouting procedures (Withdrawn)	1997	Withdrawn
BS EN 446:2007	Grout for prestressing tendons - grouting procedures	2007	Current
BS EN 447:1997	Grout for prestressing tendons - specification for common grout (Withdrawn)	1997	Withdrawn
BS EN 447:2007	Grout for prestressing tendons - basic requirements	2007	Current
BS EN 448:1995	Preinsulated bonded pipe systems for underground hot water networks - fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene	1995	Withdrawn
BS EN 448:2003	District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene (Withdrawn)	2003	Withdrawn
BS EN 448:2009	District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene (Withdrawn)	2009	Withdrawn
BS EN 448:2015	District heating pipes - preinsulated bonded pipe systems for directly buried hot water networks - fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene (Withdrawn)	2015	Withdrawn
BS EN 448:2019	District heating pipes - bonded single pipe systems for directly buried hot water networks - factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene	2019	Current
BS EN 449:1997	Specification for dedicated liquefied petroleum gas appliances - Domestic flueless space heaters (including diffusive catalytic combustion heaters) (AMD 9833) (Withdrawn)	1997	Withdrawn
BS EN 449:2002	Specification for dedicated liquefied petroleum gas appliances - Domestic flueless space heaters (including diffusive catalytic combustion heaters)	2002	Withdrawn
BS EN 449:2002	Specification for dedicated liquefied petroleum gas appliances - domestic flueless space heaters (including diffusive catalytic combustion heaters) (+A1:2007)	2002	Current
BS EN 450-1:2005	Fly ash for concrete. Definition, specifications and conformity criteria (+A1:2007) (Withdrawn)	2005	Withdrawn, cited in regs
BS EN 450-1:2012	Fly ash for concrete. Definition, specifications and conformity criteria	2012	Current
BS EN 450-2:2005	Fly ash for concrete. Conformity evaluation	2005	Current
BS EN 450:1995	Fly ash for concrete - Definitions, requirements and quality control (Withdrawn)	1995	Withdrawn
BS EN 451-1:2003	Method of testing fly ash. Determination of free calcium oxide content	2003	Withdrawn
BS EN 451-1:2017	Method of testing fly ash. Determination of free calcium oxide content	2017	Current
BS EN 451-2:1995	Method of testing fly ash. Determination of fineness by wet sieving (Withdrawn)	1995	Withdrawn
BS EN 451-2:2017	Method of testing fly ash. Determination of fineness by wet sieving	2017	Current

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