British Standards Institution documents within the Construction Information Service

• Lightning protection system components (LPSC). Requirements for earthing enhancing compounds
• Lightning protection system components (LPSC). Requirements for lightning strike counters (LSCs)
• Lintels. Method of assessment of load (AMD 4796)
• Liquid fuel firing. Installations for liquid fuelled standby generators, furnaces, kilns, ovens and other industrial purposes - Code of practice
• Live working. Electrical insulating matting
• Loading for buildings. Code of practice for dead and imposed loads (AMD 13669) (Withdrawn)
• Loading for buildings. Code of practice for imposed roof loads (AMD 6033) (AMD 9187) (AMD 9452) (Withdrawn)
• Loading for buildings. Code of practice for wind loads (incorporating amendment No. 1 and corrigendum No. 1) (corrected and reprinted June 2002) (Withdrawn)
• Lock assemblies in which the operating mode can be switched between the normal BS 8621 operating mode and a secure mode in which no egress is possible (+A1:2024)
• Lock assemblies operated by key from both the inside and outside of the door (+A1:2024)
• Low-voltage electrical installations. Prosumer's low-voltage electrical installations (+A11:2019)
• Low-voltage fuses. General requirements
• Low-voltage fuses. General requirements (+A2:2014) (Superseded but remains current)
• Low-voltage switchgear and controlgear - Product data and properties for information exchange - Engineering data. Switchgear and controlgear assembly objects for building information modelling
• Low-voltage switchgear and controlgear and their assemblies - Security requirements
• Low-voltage switchgear and controlgear assemblies. Assemblies for power distribution in public networks (Incorporating corrigendum February 2025)
• Low-voltage switchgear and controlgear assemblies. Assemblies for power distribution in public networks (incorporating corrigendum September 2015) (Superseded but remains current)
• Low-voltage switchgear and controlgear assemblies. Busbar trunking systems (busways)
• Low-voltage switchgear and controlgear assemblies. Distribution boards intended to be operated by ordinary persons (DBO)
• Low-voltage switchgear and controlgear assemblies. Distribution boards intended to be operated by ordinary persons (DBO) (Incorporating corrigenda September 2013, December 2015 and March 2019) (Superseded but remains current)
• Low-voltage switchgear and controlgear assemblies. General rules (Incorporating corrigendum December 2021)
• Low-voltage switchgear and controlgear assemblies. Particular requirements for assemblies for construction sites (ACS)
• Low-voltage switchgear and controlgear assemblies. Power switchgear and controlgear assemblies (Incorporating corrigendum April 2026)
• Low-voltage switchgear and controlgear. Circuit-breakers
• Low-voltage switchgear and controlgear. Circuit-breakers (+A1:2020) (Incorporating corrigenda November 2016 and July 2019) (Superseded but remains current)
• Low-voltage switchgear and controlgear. Contactors and motor-starters - Electromechanical contactors and motor-starters
• Low-voltage switchgear and controlgear. Contactors and motor-starters - electromechanical contactors and motor-starters (Incorporating corrigenda April 2020 and April 2021) (Superseded but remains current)
• Low-voltage switchgear and controlgear. Control circuit devices and switching elements - Electromechanical control circuit devices
• Low-voltage switchgear and controlgear. Control circuit devices and switching elements - electromechanical control circuit devices (Incorporating corrigendum April 2020) (Superseded but remains current)
• Low-voltage switchgear and controlgear. General rules (Incorporating corrigenda December 2022 and April 2024)
• Low-voltage switchgear and controlgear. Multiple function equipment - Transfer switching equipment
• Low-voltage switchgear and controlgear. Multiple function equipment. Transfer switching equipment (+A1:2014) (Superseded but remains current)
• Low-voltage switchgear and controlgear. Switches, disconnectors, switch-disconnectors and fuse-combination units (+A1:2025) (Incorporating corrigendum November 2021)
• Luminaires. General requirements and tests (+A11:2022) (Incorporating corrigendum August 2022) (Superseded but remains current)
• Luminaires. General requirements and tests (+A11:2024) (Incorporating corrigendum March 2025)
• Luminaires. Particular requirements - Luminaires for emergency lighting
• Luminaires. Particular requirements - Recessed luminaires and recessed air-handling luminaires
• Luminaires. Particular requirements. Recessed luminaires (Incorporating corrigendum March 2012) (Superseded but remains current)
• LV and MV polymeric insulated cables for use by distribution and generation utilities. Specification for distribution cables with extruded insulation of rated voltages of 11 kV and 33 kV. Single-core 11 kV and 33 kV cables (Implementation of HD 620) (+A1:2016)
• Maintenance - Maintenance key performance indicators (+A1:2022)
• Maintenance for lifts and escalators - Rules for maintenance instructions (+A1:2008)
• Maintenance of electrical switchgear and controlgear for voltages above 1kV and up to and including 36kV - Code of practice
• Management of moisture in buildings - code of practice (Incorporating corrigendum No. 1)
• Managing fire risk related to photovoltaic (PV) systems on buildings
• Maritime structures. Code of practice for the design of Ro-Ro ramps, linkspans and walkways
• Maritime structures. Guide to the design and construction of breakwaters (incorporating corrigendum January 2010)
• Maritime works. Code of practice for dredging and land reclamation
• Maritime works. Code of practice for the design of quay walls, jetties and dolphins
• Maritime works. Code of practice for the design of shipyards and sea locks
• Maritime works. Design of fendering and mooring systems - Code of practice
• Maritime works. General - code of practice for assessment of actions (+A1:2017) (Incorporating corrigendum No. 1)
• Maritime works. General - code of practice for geotechnical design
• Maritime works. General - Code of practice for materials (+A1:2025)
• Maritime works. General - Code of practice for planning and design for the asset lifecycle
• Mast climbing work platforms (MCWPs). Selection, configuration, installation, maintenance, thorough examination and safe use. Code of practice
• Measurement of liquid flow in open channels. Weirs and flumes. Round nose horizontal broad-crested weirs
• Mechanical fasteners for gypsum plasterboard systems - Definitions, requirements and test methods (+A1:2009)
• Mechanical properties of fasteners made of carbon steel and alloy steel. Bolts, screws and studs with specified property classes - Coarse thread and fine pitch thread (ISO 898-1:2013)
• Mechanical structures for electrical and electronic equipment - outdoor enclosures. Environmental requirements, tests and safety aspects
• Mechanical vibration - Measurement and assessment of human exposure to hand-transmitted vibration. General guidelines (AMD Corrigendum 13724) (AMD Corrigendum 13821)
• Mechanical vibration - Measurement and assessment of human exposure to hand-transmitted vibration. Practical guidance for measurement at the workplace (+A1:2015)
• Mechanical vibration and shock - vibration of fixed structures - guidelines for the measurement of vibrations and evaluation of their effects on structures
• Medical electrical equipment. General requirements for basic safety and essential performance (+A13:2024) (Incorporating corrigenda December 2006, December 2007, March 2010, July 2014, and June 2018)
• Medical gas pipeline systems. Anaesthetic gas scavenging disposal systems (incorporating corrigendum No. 1)
• Medical gas pipeline systems. Pipeline systems for compressed medical gases and vacuum (+A1:2019)
• Memorials within burial grounds and memorial sites - Specification
• Metal bellows expansion joints for pressure applications
• Metal framing components for gypsum board systems - definitions, requirements and test methods
• Metal industrial piping. Design and calculation
• Metal profiles with thermal barrier - Mechanical performance - Requirements, proof and tests for assessment
• Metallic industrial piping. Fabrication and installation
• Metallic industrial piping. General
• Metallic industrial piping. Inspection and testing
• Metallic industrial piping. Materials
• Metallic products - Types of inspection documents
• Method for assessment of fire integrity of cast resin busbar trunking systems for the safety critical power distribution to life safety and fire fighting systems
• Method for assessment of fire integrity of large diameter power cables for use as components for smoke and heat control systems and certain other active fire safety systems
• Method for calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects (+A1:2008)
• Method for specifying thermal insulating materials for pipes, tanks, vessels, ductwork and equipment operating within the temperature range -40°C to +700°C (incorporating corrigendum No. 1) (Withdrawn)
• Method of test for ignitability of fabrics used in the construction of large tented structures
• Method of test for resistance to fire of unprotected small cables for use in emergency circuits
• Method of testing cement. Chemical analysis of cement
• Methods for rating and assessing industrial and commercial sound (+A1:2019)
• Methods of measuring irregularities on surfaces of roads, footways and other paved areas using straightedges and wedges
• Methods of test for assessment of the fire integrity of electric cables. Test for unprotected small cables for use in emergency circuits - BS EN 50200 with a 930°C flame and with water spray (+A2:2009)
• Methods of test for masonry units. Determination of compressive strength (+A1:2015)
• Methods of test for masonry units. Determination of freeze/thaw resistance of clay masonry units (Incorporating corrigendum January 2019)
• Methods of test for mortar for masonry. Determination of adhesive strength of hardened rendering and plastering mortars on substrates
• Methods of test for mortar for masonry. Determination of flexural and compressive strength of hardened mortar
• Methods of test for soils for civil engineering purposes. Chemical and electro-chemical testing (+A1:2021)
• Methods of test for soils for civil engineering purposes. Classification tests and determination of geotechnical properties
• Methods of test for soils for civil engineering purposes. General requirements and sample preparation (Incorporating corrigendum No. 1)
• Methods of test for soils for civil engineering purposes. In-situ tests
• Methods of testing cement. Determination of fineness
• Methods of testing cement. Determination of strength
• Methods of testing cement. Reactivity of cement constituents - heat of hydration and bound water content methods
• Methods of testing plastic. Introduction
• Microbiological safety cabinets. Information to be supplied by the purchaser to the vendor and to the installer, and siting and use of cabinets - Recommendations and guidance
• Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
• Miscellaneous road traffic signs and devices - Requirements and test methods (+A1:2023)