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EN 15242:2007

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Ventilation for buildings - Calculation methods for the determination of air flow rates in buildings including infiltration

Superseded date

01-06-2017

Published date

16-05-2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 General approach
6 Instantaneous calculation (iterative method)
  6.1 Basis of the calculation method
  6.2 Mechanical air flow calculation
  6.3 Passive and hybrid duct ventilation
  6.4 Combustion air flows
  6.5 Air flow due to windows opening
  6.6 Exfiltration and infiltration using iterative
      method
  6.7 Exflitration and infiltration calculation using
      direct method
7 Applications
  7.1 General
  7.2 Energy
  7.3 Heating load
  7.4 Cooling loads
  7.5 Summer comfort
  7.6 Indoor air quality
Annex A (normative) - Data on wind pressure coefficients
Annex B (normative) - Leakages characteristics
Annex C (normative) - Calculation of recirculation coefficient
                      C[rec]
Annex D (normative) - Conversion formulas
Annex E (informative) - Examples of fuel flow factor for
                        residential buildings
Bibliography

This European Standard describes the method to calculate the ventilation air flow rates for buildings to be used for applications such as energy calculations, heat and cooling load calculation, summer comfort and indoor air quality evaluation.The ventilation and air tightness requirements (as IAQ, heating and cooling, safety, fire protection…) are not part of the standard.For these different applications, the same iterative method is used but the input parameter should be selected according to the field of application. For specific applications a direct calculation is also defined in this standard. A simplified approach is also allowed at national level following prescribed rules of implementation.The method is meant to be applied to: -Mechanically ventilated building (mechanical exhaust, mechanical supply or balanced system). -Passive ducts.-Hybrid system switching between mechanical and natural modes.-Windows opening by manual operation for airing or summer comfort issues.Automatic windows (or openings) are not directly considered here.Industry process ventilation is out of the scope. Kitchens where cooking is for immediate use are part of the standards (including restaurants..)Other kitchens are not part of the standard.The standard is not directly applicable for buildings higher than 100 m and rooms where vertical air temperature difference is higher than 15K. The results provided by the standard are the building envelope flows either through leakages or purpose provided openings and the air flows due to the ventilation system, taking into account the product and system characteristics.

Committee
CEN/TC 156
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

Standards Relationship
DIN EN 15242:2007-09 Identical
PN EN 15242 : 2009 Identical
NS EN 15242 : 1ED 2007 Identical
NBN EN 15242 : 2007 Identical
I.S. EN 15242:2007 Identical
NEN EN 15242 : 2007 Identical
SN EN 15242 : 2007 Identical
BS EN 15242:2007 Identical
UNE-EN 15242:2007 Identical
DIN EN 15242 E : 2007 Identical
NF EN 15242 : 2007 Identical
UNI EN 15242 : 2008 Identical

S.R. CEN/TR 15232-2:2016 ENERGY PERFORMANCE OF BUILDINGS - PART 2: ACCOMPANYING TR PREN 15232-1:2015 - MODULES M10-4,5,6,7,8,9,10
I.S. EN 13779:2007 VENTILATION FOR NON-RESIDENTIAL BUILDINGS - PERFORMANCE REQUIREMENTS FOR VENTILATION AND ROOM-CONDITIONING SYSTEMS
BS EN 15804 : 2012 SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - CORE RULES FOR THE PRODUCT CATEGORY OF CONSTRUCTION PRODUCTS
I.S. EN 15265:2007 ENERGY PERFORMANCE OF BUILDINGS - CALCULATION OF ENERGY NEEDS FOR SPACE HEATING AND COOLING USING DYNAMIC METHODS - GENERAL CRITERIA AND VALIDATION PROCEDURES
15/30303577 DC : 0 BS EN ISO 52016-1 - ENERGY PERFORMANCE OF BUILDINGS - CALCULATION OF THE ENERGY NEEDS FOR HEATING AND COOLING, INTERNAL TEMPERATURES AND HEATING AND COOLING LOAD IN A BUILDING OR BUILDING ZONE - PART 1: CALCULATION PROCEDURES
12/30268269 DC : 0 BS EN 16485 - ROUND AND SAWN TIMBER - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES FOR WOOD AND WOOD-BASED PRODUCTS FOR USE IN CONSTRUCTION
DIN EN 16757 E : 2017 SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES FOR CONCRETE AND CONCRETE ELEMENTS
DIN EN 15251 E : 2012 INDOOR ENVIRONMENTAL INPUT PARAMETERS FOR DESIGN AND ASSESSMENT OF ENERGY PERFORMANCE OF BUILDINGS ADDRESSING INDOOR AIR QUALITY, THERMAL ENVIRONMENT, LIGHTING AND ACOUSTICS
14/30300963 DC : 0 BS EN 16757 - SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES FOR PRECAST CONCRETE PRODUCTS
DIN EN 15239:2007-08 VENTILATION FOR BUILDINGS - ENERGY PERFORMANCE OF BUILDINGS - GUIDELINES FOR INSPECTION OF VENTILATION SYSTEMS
DIN EN 15239 E : 2007 VENTILATION FOR BUILDINGS - ENERGY PERFORMANCE OF BUILDINGS - GUIDELINES FOR INSPECTION OF VENTILATION SYSTEMS
DIN EN 15243:2007-10 VENTILATION FOR BUILDINGS - CALCULATION OF ROOM TEMPERATURES AND OF LOAD AND ENERGY FOR BUILDINGS WITH ROOM CONDITIONING SYSTEMS
DIN EN 15243 E : 2007 VENTILATION FOR BUILDINGS - CALCULATION OF ROOM TEMPERATURES AND OF LOAD AND ENERGY FOR BUILDINGS WITH ROOM CONDITIONING SYSTEMS
DIN EN 15643-4:2012-04 Sustainability of construction works - Assessment of buildings - Part 4: Framework for the assessment of economic performance
EN 15643-1:2010 Sustainability of construction works - Sustainability assessment of buildings - Part 1: General framework
I.S. EN 16810:2017 RESILIENT, TEXTILE AND LAMINATE FLOOR COVERINGS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES
CEN/TR 15232-2:2016 Energy performance of buildings - Part 2: Accompanying TR prEN 15232-1:2015 - Modules M10-4,5,6,7,8,9,10
DIN EN 15232:2012-04 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
BS EN 15232:2012 Energy performance of buildings. Impact of Building Automation, Controls and Building Management
DIN EN 15603:2008-07 ENERGY PERFORMANCE OF BUILDINGS - OVERALL ENERGY USE AND DEFINITION OF ENERGY RATINGS
BS EN 15643-1:2010 Sustainability of construction works. Sustainability assessment of buildings General framework
BS EN 15241:2007 Ventilation for buildings. Calculation methods for energy losses due to ventilation and infiltration in buildings
UNI EN 15643-4 : 2012 SUSTAINABILITY OF CONSTRUCTION WORKS - ASSESSMENT OF BUILDINGS - PART 4: FRAMEWORK FOR THE ASSESSMENT OF ECONOMIC PERFORMANCE
09/30192729 DC : DRAFT FEB 2009 BS EN 15643-2 - SUSTAINABILITY OF CONSTRUCTION WORKS - ASSESSMENT OF BUILDINGS - PART 2: FRAMEWORK FOR THE ASSESSMENT OF ENVIRONMENTAL PERFORMANCE
BS EN 15643-4:2012 Sustainability of construction works. Assessment of buildings Framework for the assessment of economic performance
15/30297468 DC : 0 BS EN 16798-3 - ENERGY PERFORMANCE OF BUILDINGS - PART 3: VENTILATION FOR NON-RESIDENTIAL BUILDINGS - PERFORMANCE REQUIREMENTS FOR VENTILATION AND ROOM-CONDITIONING SYSTEMS
DIN EN 15241:2011-06 VENTILATION FOR BUILDINGS - CALCULATION METHODS FOR ENERGY LOSSES DUE TO VENTILATION AND INFILTRATION IN BUILDINGS
DIN EN 15804:2014-07 SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - CORE RULES FOR THE PRODUCT CATEGORY OF CONSTRUCTION PRODUCTS
15/30263791 DC : 0 BS ISO 17772-1 - ENERGY PERFORMANCE OF BUILDINGS - INDOOR ENVIRONMENTAL QUALITY - PART 1: INDOOR ENVIRONMENTAL INPUT PARAMETERS FOR THE DESIGN AND ASSESSMENT OF ENERGY PERFORMANCE OF BUILDINGS
BS EN 15239:2007 Ventilation for buildings. Energy performance of buildings. Guidelines for inspection of ventilation systems
I.S. EN 15643-4:2012 SUSTAINABILITY OF CONSTRUCTION WORKS - ASSESSMENT OF BUILDINGS - PART 4: FRAMEWORK FOR THE ASSESSMENT OF ECONOMIC PERFORMANCE
EN 15643-2:2011 Sustainability of construction works - Assessment of buildings - Part 2: Framework for the assessment of environmental performance
EN 15643-4:2012 Sustainability of construction works - Assessment of buildings - Part 4: Framework for the assessment of economic performance
DIN EN 15643-1:2010-12 Sustainability of construction works - Sustainability assessment of buildings - Part 1: General framework
UNI EN 15643-2 : 2011 SUSTAINABILITY OF CONSTRUCTION WORKS - ASSESSMENT OF BUILDINGS - PART 2: FRAMEWORK FOR THE ASSESSMENT OF ENVIRONMENTAL PERFORMANCE
UNI EN 15603 : 2008 ENERGY PERFORMANCE OF BUILDINGS - OVERALL ENERGY USE AND DEFINITION OF ENERGY RATINGS
EN 15804:2012 Sustainability of construction works - Environmental product declarations - Core rules for the product category of construction products
DIN EN 15232 E : 2012 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
UNE-EN 15232:2014 Energy performance of buildings - Impact of Building Automation, Controls and Building Management
VDI 2078:2015-06 Calculation of thermal loads and room temperatures (design cooling load and annual simulation)
BS EN 15243:2007 Ventilation for buildings. Calculation of room temperatures and of load and energy for buildings with room conditioning systems
BS EN 15643-2:2011 Sustainability of construction works. Assessment of buildings Framework for the assessment of environmental performance
DIN EN 16757:2016-07 (Draft) SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES FOR CONCRETE AND CONCRETE ELEMENTS
11/30244232 DC : DRAFT JUNE 2011 BS EN 15232 - ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
DIN EN 16810 E : 2017 RESILIENT, TEXTILE AND LAMINATE FLOOR COVERINGS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES
BS ISO 17772-1:2017 Energy performance of buildings. Indoor environmental quality Indoor environmental input parameters for the design and assessment of energy performance of buildings
UNE-EN 16810:2017 Resilient, textile and laminate floor coverings - Environmental product declarations - Product category rules
I.S. EN 15804:2012 SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - CORE RULES FOR THE PRODUCT CATEGORY OF CONSTRUCTION PRODUCTS
09/30192733 DC : DRAFT FEB 2009 BS EN 15643-1 - SUSTAINABILITY OF CONSTRUCTION WORKS - ASSESSMENT OF BUILDINGS - PART 1: GENERAL FRAMEWORK
UNI EN 15665 : 2009 VENTILATION FOR BUILDINGS - DETERMINING PERFORMANCE CRITERIA FOR RESIDENTIAL VENTILATION SYSTEMS
BS EN 15603:2008 Energy performance of buildings. Overall energy use and definition of energy ratings
DIN EN 15804 E : 2014 SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - CORE RULES FOR THE PRODUCT CATEGORY OF CONSTRUCTION PRODUCTS
CEN/TR 15615:2008 Explanation of the general relationship between various European standards and the Energy Performance of Buildings Directive (EPBD) - Umbrella Document
I.S. EN 16757:2017 SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES FOR CONCRETE AND CONCRETE ELEMENTS
ISO 23045:2008 Building environment design Guidelines to assess energy efficiency of new buildings
I.S. EN 15241:2007 VENTILATION FOR BUILDINGS - CALCULATION METHODS FOR ENERGY LOSSES DUE TO VENTILATION AND INFILTRATION IN BUILDINGS
DIN EN 15265 E : 2007 ENERGY PERFORMANCE OF BUILDINGS - CALCULATION OF ENERGY NEEDS FOR SPACE HEATING AND COOLING USING DYNAMIC METHODS - GENERAL CRITERIA AND VALIDATION PROCEDURES
DIN EN 15265:2007-11 ENERGY PERFORMANCE OF BUILDINGS - CALCULATION OF ENERGY NEEDS FOR SPACE HEATING AND COOLING USING DYNAMIC METHODS - GENERAL CRITERIA AND VALIDATION PROCEDURES
EN 16810:2017 Resilient, textile and laminate floor coverings - Environmental product declarations - Product category rules
UNI EN 15232 : 2012 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
UNI EN 13779 : 2008 VENTILATION FOR NON-RESIDENTIAL BUILDINGS - PERFORMANCE REQUIREMENTS FOR VENTILATION AND ROOM-CONDITIONING SYSTEMS
BS EN 15665:2009 Ventilation for buildings. Determining performance criteria for residential ventilation systems
16/30339217 DC : DRAFT JUNE 2016 BS EN 16757 - SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES FOR CONCRETE AND CONCRETE ELEMENTS
BS EN 16810:2017 Resilient, textile and laminate floor coverings. Environmental product declarations. Product category rules
DIN EN 15241 E : 2011 VENTILATION FOR BUILDINGS - CALCULATION METHODS FOR ENERGY LOSSES DUE TO VENTILATION AND INFILTRATION IN BUILDINGS
DIN EN 15665 E : 2009 VENTILATION FOR BUILDINGS - DETERMINING PERFORMANCE CRITERIA FOR RESIDENTIAL VENTILATION SYSTEMS
BS EN 15251:2007 Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics
DIN EN 15603 E : 2008 ENERGY PERFORMANCE OF BUILDINGS - OVERALL ENERGY USE AND DEFINITION OF ENERGY RATINGS
16/30333945 DC : 0 BS EN 15643-5 - SUSTAINABILITY OF CONSTRUCTION WORKS - SUSTAINABILITY ASSESSMENT OF BUILDINGS AND CIVIL ENGINEERING WORKS - PART 5: FRAMEWORK FOR THE ASSESSMENT OF SUSTAINABILITY PERFORMANCE OF CIVIL ENGINEERING WORKS
14/30312994 DC : 0 BS EN 16810 - SUSTAINABILITY OF CONSTRUCTION WORK - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES FOR RESILIENT, TEXTILE AND LAMINATE FLOOR COVERINGS
DIN EN 15643-2:2011-05 Sustainability of construction works - Assessment of buildings - Part 2: Framework for the assessment of environmental performance
UNI EN 15804 : 2014 SUSTAINABILITY OF CONSTRUCTION WORKS - ENVIRONMENTAL PRODUCT DECLARATIONS - CORE RULES FOR THE PRODUCT CATEGORY OF CONSTRUCTION PRODUCTS
I.S. EN 15665:2009 VENTILATION FOR BUILDINGS - DETERMINING PERFORMANCE CRITERIA FOR RESIDENTIAL VENTILATION SYSTEMS
I.S. EN 15239:2007 VENTILATION FOR BUILDINGS - ENERGY PERFORMANCE OF BUILDINGS - GUIDELINES FOR INSPECTION OF VENTILATION SYSTEMS
BS EN 15265:2007 Energy performance of buildings. Calculation of energy needs for space heating and cooling using dynamic methods. General criteria and validation procedures
BS EN 13779:2007 Ventilation for non-residential buildings. Performance requirements for ventilation and room-conditioning systems
UNE-EN 15804:2012 Sustainability of construction works - Environmental product declarations - Core rules for the product category of construction products
EN 15243:2007 Ventilation for buildings - Calculation of room temperatures and of load and energy for buildings with room conditioning systems
EN 15665:2009 Ventilation for buildings - Determining performance criteria for residential ventilation systems
EN 13779:2007 Ventilation for non-residential buildings - Performance requirements for ventilation and room-conditioning systems
EN 15241:2007/AC:2011 VENTILATION FOR BUILDINGS - CALCULATION METHODS FOR ENERGY LOSSES DUE TO VENTILATION AND INFILTRATION IN BUILDINGS
EN 15603:2008 Energy performance of buildings - Overall energy use and definition of energy ratings
EN 16757:2017 Sustainability of construction works - Environmental product declarations - Product Category Rules for concrete and concrete elements
EN 15265:2007 Energy performance of buildings - Calculation of energy needs for space heating and cooling using dynamic methods - General criteria and validation procedures
EN 15239:2007 Ventilation for buildings - Energy performance of buildings - Guidelines for inspection of ventilation systems
EN 15251:2007 Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics
EN 15232:2012 Energy performance of buildings - Impact of Building Automation, Controls and Building Management
BS EN 16757:2017 Sustainability of construction works. Environmental product declarations. Product Category Rules for concrete and concrete elements
12/30237844 DC : 0 BS ISO 16346 - ENERGY PERFORMANCE OF BUILDINGS - ASSESSMENT OF OVERALL ENERGY PERFORMANCE
DIN EN 16810:2017-08 RESILIENT, TEXTILE AND LAMINATE FLOOR COVERINGS - ENVIRONMENTAL PRODUCT DECLARATIONS - PRODUCT CATEGORY RULES
I.S. EN 15232:2012 ENERGY PERFORMANCE OF BUILDINGS - IMPACT OF BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT
PD CEN/TR 15615:2008 Explanation of the general relationship between various CEN standards and the Energy Performance of Buildings Directive (EPBD). Umbrella document
DIN EN 15251:2012-12 Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics
ISO 17772-1:2017 Energy performance of buildings — Indoor environmental quality — Part 1: Indoor environmental input parameters for the design and assessment of energy performance of buildings
PD CEN/TR 15232-2:2016 Energy performance of buildings Accompanying TR prEN 15232-1:2015. Modules M10-4,5,6,7,8,9,10
I.S. EN 15643-1:2010 SUSTAINABILITY OF CONSTRUCTION WORKS - SUSTAINABILITY ASSESSMENT OF BUILDINGS - PART 1: GENERAL FRAMEWORK
UNI EN 15643-1 : 2010 SUSTAINABILITY OF CONSTRUCTION WORKS - SUSTAINABILITY ASSESSMENT OF BUILDINGS - PART 1: GENERAL FRAMEWORK
PREN 15643-5 : DRAFT 2016 SUSTAINABILITY OF CONSTRUCTION WORKS - SUSTAINABILITY ASSESSMENT OF BUILDINGS AND CIVIL ENGINEERING WORKS - PART 5: FRAMEWORK FOR THE ASSESSMENT OF SUSTAINABILITY PERFORMANCE OF CIVIL ENGINEERING WORKS
I.S. EN 15243:2007 VENTILATION FOR BUILDINGS - CALCULATION OF ROOM TEMPERATURES AND OF LOAD AND ENERGY FOR BUILDINGS WITH ROOM CONDITIONING SYSTEMS
I.S. EN 15643-2:2011 SUSTAINABILITY OF CONSTRUCTION WORKS - ASSESSMENT OF BUILDINGS - PART 2: FRAMEWORK FOR THE ASSESSMENT OF ENVIRONMENTAL PERFORMANCE
15/30297473 DC : 0 BS EN 16798-1 - ENERGY PERFORMANCE OF BUILDINGS - PART 1: INDOOR ENVIRONMENTAL INPUT PARAMETERS FOR DESIGN AND ASSESSMENT OF ENERGY PERFORMANCE OF BUILDINGS ADDRESSING INDOOR AIR QUALITY, THERMAL ENVIRONMENT, LIGHTING AND ACOUSTICS - MODULE M1-6
I.S. EN 15603:2008 ENERGY PERFORMANCE OF BUILDINGS - OVERALL ENERGY USE AND DEFINITION OF ENERGY RATINGS
I.S. EN 15251:2007 INDOOR ENVIRONMENTAL INPUT PARAMETERS FOR DESIGN AND ASSESSMENT OF ENERGY PERFORMANCE OF BUILDINGS ADDRESSING INDOOR AIR QUALITY, THERMAL ENVIRONMENT, LIGHTING AND ACOUSTICS
DIN EN 15665:2009-07 VENTILATION FOR BUILDINGS - DETERMINING PERFORMANCE CRITERIA FOR RESIDENTIAL VENTILATION SYSTEMS
DIN EN 13779:2007-09 VENTILATION FOR NON-RESIDENTIAL BUILDINGS - PERFORMANCE REQUIREMENTS FOR VENTILATION AND ROOM-CONDITIONING SYSTEMS

EN 14239:2004 Ventilation for buildings - Ductwork - Measurement of ductwork surface area
EN ISO 13792:2012 Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - Simplified methods (ISO 13792:2012)
EN 1886:2007 Ventilation for buildings - Air handling units - Mechanical performance
EN ISO 15927-1:2003 Hygrothermal performance of buildings - Calculation and presentation of climatic data - Part 1: Monthly means of single meteorological elements (ISO 15927-1:2003)
EN 15251:2007 Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics
EN 1507:2006 Ventilation for buildings - Sheet metal air ducts with rectangular section - Requirements for strength and leakage
ISO 13792:2012 Thermal performance of buildings Calculation of internal temperatures of a room in summer without mechanical cooling Simplified methods
EN 13053:2006+A1:2011 Ventilation for buildings - Air handling units - Rating and performance for units, components and sections
EN 12792:2003 Ventilation for buildings - Symbols, terminology and graphical symbols
CR 14378:2002/AC:2002 VENTILATION FOR BUILDINGS - EXPERIMENTAL DETERMINATION OF MECHANICAL ENERGY LOSS COEFFICIENTS OF AIR HANDLING COMPONENTS
EN 12237:2003 Ventilation for buildings - Ductwork - Strength and leakage of circular sheet metal ducts
ISO 15927-1:2003 Hygrothermal performance of buildings Calculation and presentation of climatic data Part 1: Monthly means of single meteorological elements
EN 13141-5:2004 Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 5: Cowls and roof outlet terminal devices
EN 13141-2:2010 Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 2: Exhaust and supply air terminal devices
EN 13141-1:2004 Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 1: Externally and internally mounted air transfer devices
EN ISO 13791:2012 Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - General criteria and validation procedures (ISO 13791:2012)
CEN/TR 1749:2014 European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)
ISO 13791:2012 Thermal performance of buildings Calculation of internal temperatures of a room in summer without mechanical cooling General criteria and validation procedures
EN 13779:2007 Ventilation for non-residential buildings - Performance requirements for ventilation and room-conditioning systems

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