EN 1–999
* EN 1: Flued oil stoves with vaporizing burners * EN 2: Classification of fires * EN 3: Portable fire extinguishers * EN 14: Dimensions of bed blankets * EN 19: Industrial valves – Marking of metallic valves * EN 20: Wood preservatives. * EN 26: Gas-fired instantaneous water heaters for the production of domestic hot water * EN 40-1: Lighting columns - Part 1: Definitions and terms * EN 40-2: Lighting columns - Part 2: General requirements and dimensions * EN 40-3-1: Lighting columns - Part 3-1: Design and verification - Specification for characteristic loads * EN 40-3-2: Lighting columns - Part 3-2: Design and verification - Verification by testing * EN 40-3-3: Lighting columns - Part 3-3: Design and verification - Verification by calculation * EN 40-4: Lighting columns - Part 4: Requirements for reinforced and prestressed concrete lighting columns * EN 40-5: Lighting columns - Part 5: Requirements for steel lighting columns * EN 40-6: Lighting columns - Part 6: Requirements for aluminium lighting columns * EN 40-7: Lighting columns - Part 7: Requirements for fibre reinforced polymer composite lighting columns * EN 54: Fire detection and fire alarm systems * EN 71: Safety of toys * EN 81: Safety of lifts and escalators * EN 115: Safety of escalators & Moving walks * EN 131: Ladders * EN 136: Respiratory protective devices - Full-face masks - Requirements, testing and marking * EN 166: Personal eye protection. Specifications * EN 196: Methods for testing cement (10 parts) * EN 197-1: Cement – Part 1 : Composition, specifications and conformity criteria for common cements * EN 197-2: Cement – Part 2 : Conformity evaluation * EN 206-1: Concrete – Part 1: Specification, performance, production and conformity * EN 207: Classification and specifications of filters and eye protection against laser * EN 208: Classification of eye protection filters for laser alignment * EN 228: Specifications for automotive petrol * EN 250: Respiratory equipment. Open-circuit self-contained compressed air diving apparatus. Requirements, testing, marking * EN 280: Mobile elevating work platforms. Design calculations, Stability criteria, Construction, Safety Examinations and tests * EN 286: Simple unfired pressure vessels designed to contain air or nitrogen ** Part 3: Steel pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock ** Part 4: Aluminium alloy pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock * EN 287: Qualification test of welders — Fusion welding ** Part 1: Steels * EN 294: Safety of machinery; safety distances to prevent danger zones from being reached by the upper limbs * EN 298: Automatic gas burner control systems for gas burners and gas burning appliances with or without fans * EN 301 549: European standard for digital accessibility * EN 336: Structural timber — Sizes, permitted deviations * EN 338: Structural timber — Strength classes * EN 341: Personal protective equipment against falls from a height. Descender devices * EN 352-2: Revised 2002 standards on hearing protectors. Safety requirements and testing, generally aboutEN 1000–1989
* EN 1010-1: Safety of machinery. Safety requirements for the design and construction of printing and paper converting machines. Common requirements * EN 1010-2: Safety of machinery. Safety requirements for the design and construction of printing and paper converting machines. Printing and varnishing machines including pre-press machinery * EN 1010-3: Safety of machinery. Safety requirements for the design and construction of printing and paper converting machines. Cutting machines * EN 1010-4: Safety of machinery. Safety requirements for the design and construction of printing and paper converting machines. Bookbinding, paper converting and finishing machines * EN 1010-5: Safety of machinery - Safety requirements for the design and construction of printing and paper converting machines. Machines for the production of corrugated board * EN 1069: Water slides of 2 m height and more * EN 1078: Helmets for pedal cyclists and for users of skateboards and roller skates * EN 1090: Execution of steel structures and aluminium structures (3 parts) * EN 1092: Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated * EN 1168: Precast concrete products - Hollow core slabs * EN 1176-1: Playground equipment. General safety requirements and test methods * EN 1177: Impact absorbing playground surfacing. Safety requirements and test methods * EN 1325:2014: Value Management. Vocabulary. Terms and definitions ** EN 1325-1:1997 Value management, value analysis, functional analysis vocabulary. Value analysis and functional analysis (withdrawn, replaced by EN 1325:2014) * EN 1337: Structural bearings * EN 1399: Resilient floor coverings. Determination of resistance to stubbed and burning cigarettes * EN 1401: Plastics piping systems for non-pressure underground drainage and sewerage - Unplasticized poly(vinyl chloride) (PVC-U) * EN 1466: Child use and care articles - Carry cots and stands - Safety requirements and test methods * EN 1496: Personal fall protection equipment. Rescue lifting devices * EN 1679: Reciprocating internal combustion engines: Compression ignition engines * EN 1809: Diving accessories. Buoyancy compensators. Functional and safety requirements, test methods. * EN 1815: Resilient and textile floor coverings. Assessment of static electrical propensity * EN 1846: Firefighting and rescue service vehicles * EN 1888-1: Child use and care articles - Wheeled child conveyances (Part 1: Pushchairs and prams—Up to 15 kg) * EN 1888-2: Child use and care articles - Wheeled child conveyances (Part 2: Pushchairs for children above 15 kg up to 22 kg) * EN 1891: Personal protective equipment for the prevention of falls from a height. Low stretch kernmantel ropes * EN 1972: Diving equipment - Snorkels - Requirements and test methodsEN 1990–1999 (Eurocodes)
* EN 1990: (Eurocode 0) Basis of structural design * EN 1991: (Eurocode 1) Actions on structures * EN 1992: (Eurocode 2) Design of concrete structures * EN 1993: (Eurocode 3) Design of steel structures * EN 1994: (Eurocode 4) Design of composite steel and concrete structures * EN 1995: (Eurocode 5) Design of timber structures * EN 1996: (Eurocode 6) Design of masonry structures * EN 1997: (Eurocode 7) Geotechnical design * EN 1998: (Eurocode 8) Design of structures for earthquake resistance * EN 1999: (Eurocode 9) Design of aluminium structuresEN 10000–10999
This range includes almost exclusively CEN Standards related to iron and steel. * EN 10002: Metallic Materials - Tensile Testing ** EN 10002-1: Method of Test at Ambient Temperature ** EN 10002-5: Method of testing at elevated temperatures * EN 10024: Hot rolled taper flange I sections. Tolerances on shape and dimensions * EN 10025: Hot rolled products of structural steels ** EN 10025-1: Part 1: General technical delivery conditions ** EN 10025-2: Part 2: Technical delivery conditions for non-alloy structural steels ** EN 10025-3: Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels ** EN 10025-4: Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels **EN 11000–19999
* EN 12102: Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with electrically driven compressors for space heating and cooling - Measurement of airborne noise - Determination of the sound power level * EN 12103: Resilient floor coverings - Agglomerated cork underlays - specification * EN 12104: Resilient floor coverings - Cork floor tiles - Specification * EN 12105: Resilient floor coverings - Determination of moisture content of agglomerated composition cork * EN 12199: Resilient floor coverings. Specifications for homogeneous and heterogeneous relief rubber floor coverings * EN 12221: Changing units for domestic use * EN 12246: Quality classification of timber used in pallets and packaging * EN 12255: Wastewater treatment plants ** EN 12255-1: Part 1: General construction principles ** EN 12255-2: Part 2: Performance requirements of raw wastewater pumping installations ** EN 12255-3: Part 3: Preliminary treatment ** EN 12255-4: Part 4: Primary settlement ** EN 12255-5: Part 5: Lagooning processes ** EN 12255-6: Part 6: Activated sludge process ** EN 12255-7: Part 7: Biological fixed-film reactors ** EN 12255-8: Part 8: Sludge treatment and storage ** EN 12255-9: Part 9: Odour control and ventilation ** EN 12255-10: Part 10: Safety principles ** EN 12255-11: Part 11: General data required ** EN 12255-12: Part 12: Control and automation ** EN 12255-13: Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation ** EN 12255-14: Part 14: Disinfection ** EN 12255-15: Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants ** EN 12255-16: Part 16: Physical (mechanical) filtration * EN 12277: Mountaineering and climbing harnesses * EN 12281: Printing and business paper. Requirements for copy paper. * EN 12345: Welding. Multilingual terms for welded joints with illustrations * EN 12492: Helmets for mountaineering * EN 12566: Small wastewater treatment systems for up to 50 PT ** EN 12566-1: Part 1: Prefabricated septic tanks ** EN 12566-2: Part 2: Soil infiltration systems ** EN 12566-3: Part 3: Packaged and/or site assembled domestic wastewater treatment plants ** EN 12566-4: Part 4: Septic tanks assembled in situ from prefabricated kits ** EN 12566-5: Part 5: Pretreated Effluent Filtration systems ** EN 12566-6: Part 6: Prefabricated treatment units for septic tank effluent ** EN 12566-7: Part 7: Prefabricated tertiary treatment units * EN 12572: Artificial climbing structures * EN 12600: Classification of Resistance of Glazing to Impact * EN 12663: Railway applications - Structural requirements of railway vehicle bodies ** Part 1: Locomotives and passenger rolling stock (and alternative method for freight wagons) ** Part 2: Freight wagons * EN 12797: Brazing – Destructive tests of brazed joints * EN 12799: Brazing – Non-destructive examination brazed joints * EN 12810: Facade scaffolds made of prefabricated parts * EN 12811: Temporary works equipment * EN 12841: Personal fall protection equipment. Rope access systems. Rope adjustment devices *BS EN 12845:2015+A1:2019 Fixed firefighting systems. Automatic sprinkler systems. Design, installation and maintenance, as amended 2019 * EN 12890: Patterns, pattern equipment and coreboxes for the production of sand molds and sand cores * EN 12896: Public Transport Reference Data Model * EN 12952: Water-Tube Boilers and Auxiliary Installations * EN 12973: Value Management * EN 12975-1: Thermal solar systems and components - Solar collectors * EN 13000: Cranes - Mobile Cranes * EN 13103: Railway applications — Wheelsets and bogies — Non-powered axles — Design method * EN 13104: Railway applications — Wheelsets and bogies — Powered axles — Design method * EN 13133: "Brazing - Brazer approval" (2000) * EN 13145: Railway applications - Track - Wood sleepers and bearers * EN 13146: Railway applications - Track - Test methods for fastening systems ** EN 13146-1: Part 1: Determination of longitudinal rail restraint ** EN 13146-2: Part 2: Determination of torsional resistance ** EN 13146-3: Part 3: Determination of attenuation of impact loads ** EN 13146-4: Part 4: Effect of repeated loading ** EN 13146-5: Part 5: Determination of electrical resistance ** EN 13146-6: Part 6: Effect of severe environmental conditions ** EN 13146-7: Part 7: Determination of clamping force ** EN 13146-8: Part 8: In service testing ** EN 13146-9: Part 9: Determination of stiffness * EN 13162:2013-03: Thermal insulation products for buildings - Factory made mineral wool (MW) products * EN 13204: Double acting hydraulic rescue tools for fire and rescue service use. Safety and performance requirements * EN 13231: Railway applications - Track - Acceptance of works ** EN 13231-1: Part 1: Works on ballasted track - Plain line, switches and crossings ** EN 13231-2: Part 2: Acceptance of reprofiling rails in plain line, switches, crossings, and expansion devices ** EN 13231-3: withdrawn, replaced by EN 13231-2 ** EN 13231-4: withdrawn, replaced by EN 13231-2 ** EN 13231-5: Part 5: Procedures for rail reprofiling in plain line, switches, crossings, and expansion devices * EN 13260: Railway applications — Wheelsets and bogies — Wheelsets — Product requirements * EN 13261: Railway applications — Wheelsets and bogies — Axles — Product requirements * EN 13262: Railway applications — Wheelsets and bogies — Wheels — Product requirements * EN 13300: quality and classification of (interior) wall paint * EN 13309: Construction machinery - Electromagnetic compatibility of machines with internal power supply * EN 13319: Diving accessories. Depth gauges and combined depth and time measuring devices. Functional and safety requirements, test methods. * EN 13402: Size designation of clothes * EN 13432: Compostable and biodegradableEN 20000–49999
* EN 20345: Personal Protective Equipment – Safety Footwear * EN 28601: Data elements and interchange formats; information interchange; representation of dates and times * EN 45011: General requirements for bodies operatingEN 50000–59999 (CENELEC specific, non-IEC electrical standards)
* EN 50022: 35 mm snap-on top-hat mounting rails for low-voltage switchgear ( DIN rail) * EN 50075: Europlug * EN 50090: Home and Building Electronic Systems ( KNX/EIB) * EN 50102: Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts * EN 50119: Railway applications - Fixed installations: Electric traction overhead contact lines for railways * EN 50121: Railway applications - Electromagnetic compatibility ** EN 50121-1: Railway applications - Electromagnetic compatibility Part 1: General ** EN 50121-2: Railway applications - Electromagnetic compatibility - Part 2 : emission of the whole railway system to the outside world ** EN 50121-3-1: Railway applications - Electromagnetic compatibility - Part 3-1 : rolling stock - Train and complete vehicle ** EN 50121-3-2: Railway applications - Electromagnetic compatibility - Part 3-2 : rolling stock - Apparatus ** EN 50121-4: Railway applications - Electromagnetic compatibility - Part 4 : emission and immunity of the signaling and telecommunications apparatus ** EN 50121-5: Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus * EN 50122: Railway applications - Fixed installations ** EN 50122-1: Railway applications - Fixed installations - Electrical safety, earthing and the return circuit - Part 1: Protective provisions against electric shock ** EN 50122-2: Railway applications - Fixed installations - Part 2: Protective provisions against the effects of Stray currents caused by d.c. traction systems ** EN 50122-3: Railway applications - Fixed installations - Electrical safety, earthing and the return circuit - Part 3: Mutual Interaction of a.c. and d.c. traction systems * EN 50123: Railway applications - Fixed installations - D.C. switchgear * EN 50124: Railway applications - Insulation coordination * EN 50125-1: Railway applications - Environmental conditions for equipment - Part 1: Rolling stock and on-board equipment * EN 50125-2: Railway applications - Environmental conditions for equipment - Part 2: Fixed electrical installations * EN 50125-3: Railway applications - Environmental conditions for equipment - Part 3: Equipment for signaling and telecommunications * EN 50126: Railway applications - The specification and demonstration of reliability, availability, maintainability and safety ( RAMS) * EN 50128: Railway applications - Communication, signalling and processing systems - Software for railway control and protection systems * EN 50129: Railway applications - Communication, signalling and processing systems – Safety related electronic systems for signalling * EN 50130: Alarm systems - Electromagnetic compatibility and Environmental test methods * EN 50131: Alarm systems - Intrusion and hold-up systems * EN 50136: Alarm systems - Alarm transmission systems * EN 50153: Railway applications - Rolling stock - Protective provisions relating to electrical hazards * EN 50155: Railway applications - Electronic equipment used on rolling stock * EN 50157: Domestic and Similar Electronic Equipment Interconnection Requirements (Part1 = AV.link) * EN 50159: Railway applications - Communication, signaling and processing systems - Safety-related communication in transmission systems * EN 50163: Railway applications - Supply voltages of traction systems * EN 50178: Electronic equipment for use in power installations * EN 50207: Railway applications - Electronic power converters for rolling stock * EN 50262: Metric cable glands * EN 50267: Corrosive Gases * EN 50272-1: Standards for Safety requirements for secondary batteries and battery installations - Part 1 General safety information * EN 50272-2: Standards for Safety requirements for secondary batteries and battery installations - Part 2 Stationary batteries * EN 50522: Earthing of power installations exceeding 1 kV a.c. * EN 50308: Wind Turbines - Protective Measures - Requirements for design, operation and maintenance * EN 50325: Industrial communications subsystem based on ISO 11898 (CAN) for controller-device interfaces * EN 50412: Power line communication apparatus and systems used in low-voltage installations in the frequency range 1.6 MHz to 30 MHz * EN 50436: Alcohol interlocks * EN 50465: Gas appliances - Combined heat and power appliance of nominal heat input inferior or equal to 70 kW * EN 50470-3: Electricity metering equipment - Part 3: Particular requirements - Static meters for AC active energy (class indexes A, B and C) * EN 50470-4: Electricity metering equipment - Part 4: Particular requirements - Static meters for DC active energy (class indexes A, B and C) * EN 50525: Low voltage energy cables; a merger of HD 21 and HD 22. * EN 50571: Household and similar electrical appliances - Safety - Particular requirements for commercial electric washing machines * EN 50562: Railway applications - Fixed installations - Process, protective measures and demonstration of safety for electric traction systems * EN 50581: documentation for the assessment of electrical and electronic products with respect to theEN 60000-69999 (CENELEC editions of IEC standards)
* EN 60065: Audio, Video and similar electronics apparatus - Safety requirements. * EN 60077: Railway applications - Electric equipment for rolling stock * EN 60950-1: Information technology equipment - Safety - Part1: General requirements * EN 60950-21: Information technology equipment - Safety - Part21: Remote power feeding * EN 60950-22: Information technology equipment - Safety - Part22: Equipment installed outdoors * EN 60950-23: Information technology equipment - Safety - Part23: Large data storage equipment * EN 61000-1-2: Electromagnetic compatibility (EMC). General. Methodology for the achievement of functional safety of electrical and electronic systems including equipment with regard to electromagnetic phenomena * EN 61000-1-3: Electromagnetic compatibility (EMC). General. The effects of high-altitude EMP (HEMP) on civil equipment and systems * EN 61000-1-4: Electromagnetic compatibility (EMC). General. Historical rationale for the limitation of power-frequency conducted harmonic current emissions from equipment, in the frequency range up to 2 kHz * EN 61000-1-5: Electromagnetic compatibility (EMC). General. High power electromagnetic (HPEM) effects on civil systems * EN 61000-1-6: Electromagnetic compatibility (EMC). General. Guide to the assessment of measurement uncertainty * EN 61000-2-2: Electromagnetic compatibility (EMC). Environment. Compatibility levels for low-frequency conducted disturbances and signaling in public low-voltage power supply systems * EN 61000-2-4: Electromagnetic compatibility (EMC). Environment. Compatibility levels in industrial plants for low-frequency conducted disturbances * EN 61000-2-9: Electromagnetic compatibility (EMC). Environment. Description of HEMP environment. Radiated disturbance. Basic EMC publication * EN 61000-2-10: Electromagnetic compatibility (EMC). Environment. Description of HEMP environment. Conducted disturbance * EN 61000-2-12: Electromagnetic compatibility (EMC). Environment. Compatibility levels for low-frequency conducted disturbances and signaling in public medium-voltage power supply systems * EN 61000-3-2: Electromagnetic compatibility (EMC). Limits. Limits for harmonic current emissions (equipment input current up to and including 16 A per phase) * EN 61000-3-3: Electromagnetic compatibility (EMC). Limits. Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection * EN 61000-3-11: Electromagnetic compatibility (EMC). Limits. Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems. Equipment with rated voltage current ≤ 75 A and subject to conditional connection * EN 61000-3-12: Electromagnetic compatibility (EMC). Limits. * EN 61000-4-1: Electromagnetic compatibility (EMC). Testing and measurement techniques. Overview of IEC 61000-4 series * EN 61000-4-2: Electromagnetic compatibility (EMC). Testing and measurement techniques. Electrostatic discharge immunity test. Basic EMC publication * EN 61000-4-3: Electromagnetic compatibility (EMC). Testing and measurement techniques. Radiated, radio-frequency, electromagnetic field immunity test * EN 61000-4-4: Electromagnetic compatibility (EMC). Testing and measurement techniques. Electrical fast transient/burst immunity test * EN 61000-4-5: Electromagnetic compatibility (EMC). Testing and measurement techniques. Surge immunity test * EN 61000-4-6: Electromagnetic compatibility (EMC). Testing and measurement techniques. Immunity to conducted disturbances, induced by radio-frequency fields * EN 61000-4-7: Electromagnetic compatibility (EMC). Testing and measurement techniques. General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto * EN 61000-4-8: Electromagnetic compatibility (EMC). Testing and measurement techniques. Power frequency magnetic field immunity test. Basic EMC publication * EN 61000-4-11: Electromagnetic compatibility (EMC). Testing and measurement techniques. Voltage dips, short interruptions and voltage variations immunity tests * EN 61000-4-12: Electromagnetic compatibility (EMC). Testing and measurement techniques. Oscillatory waves immunity test. Basic EMC publication * EN 61000-4-13: Electromagnetic compatibility (EMC). Testing and measurement techniques. Harmonics and interharmonics including mains signaling at a.c. power port, low frequency immunity tests * EN 61000-4-14: Electromagnetic compatibility (EMC). Testing and measurement techniques. Voltage fluctuation immunity test for equipment with input current not exceeding 16 A per phase * EN 61000-4-15: Electromagnetic compatibility (EMC). Testing and measurement techniques. Flickermeter. Functional and design specifications. Basic EMC publication * EN 61000-4-16: Electromagnetic compatibility (EMC). Testing and measurement techniques. Test for immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz * EN 61000-4-17: Electromagnetic compatibility (EMC). Testing and measurement techniques. Ripple on d.c. input power port immunity test * EN 61000-4-18: Electromagnetic compatibility (EMC). Testing and measurement techniques. Damped oscillatory wave immunity test * EN 61000-4-19: Electromagnetic compatibility (EMC). Testing and measurement techniques. Test for immunity to conducted, differential mode disturbances and signaling in the frequency range 2 kHz to 150 kHz at a.c. power ports * EN 61000-4-20: Electromagnetic compatibility (EMC). Testing and measurement techniques. Emission and immunity testing in transverse electromagnetic (TEM) waveguides * EN 61000-4-21: Electromagnetic compatibility (EMC). Testing and measurement techniques. Reverberation chamber test methods * EN 61000-4-22: Electromagnetic compatibility (EMC). Testing and measurement techniques. Radiated emission and immunity measurements in fully anechoic rooms (FARs) * EN 61000-4-23: Electromagnetic compatibility (EMC). Testing and measurement techniques. Test methods for protective devices for HEMP and other radiated disturbances * EN 61000-4-24: Electromagnetic compatibility (EMC). Testing and measurement techniques. Test methods for protective devices for HEMP conducted disturbance. Basic EMC publication * EN 61000-4-25: Electromagnetic compatibility (EMC). Testing and measurement techniques. HEMP immunity test methods for equipment and systems * EN 61000-4-27: Electromagnetic compatibility (EMC). Testing and measurement techniques. Unbalance, immunity test for equipment with input current not exceeding 16 A per phase * EN 61000-4-28: Electromagnetic compatibility (EMC). Testing and measurement techniques. Variation of power frequency, immunity test for equipment with input current not exceeding 16 A per phase * EN 61000-4-29: Electromagnetic compatibility (EMC). Testing and measurement techniques. Voltage dips, short interruptions and voltage variations on d.c.input power ports. Immunity tests. Basic EMC Publication. * EN 61000-4-30: Electromagnetic compatibility (EMC). Testing and measurement techniques. Testing and measurement techniques. Power quality measurement methods * EN 61000-4-34: Electromagnetic compatibility (EMC). Testing and measurement techniques. Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16 A per phase * IEC 61000-5-1 Electromagnetic compatibility (EMC). Installation and mitigation guidelines. General considerations. Basic EMC publication * EN 61000-5-5 Electromagnetic compatibility (EMC). Installation and mitigation guidelines. Specification of protective devices for HEMP conducted disturbance. Basic EMC publication * EN 61000-5-7 Electromagnetic compatibility (EMC). Installation and mitigation guidelines. Degrees of protection by enclosures against electromagnetic disturbances (EM code). Degrees of protection against electromagnetic disturbances provided by enclosures (EM code) * EN 61000-6-1 Electromagnetic compatibility (EMC). Generic standards. Immunity for residential, commercial and light-industrial environments *See also
*Reference s
External links
{{List of EN standards, state=autocollapse EN standards