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eLibrary > BS EN 15941:2024 Sustainability of construction works. Data quality for environmental assessment of products and construction work. Selection and use of data >

BS EN 15941:2024 Sustainability of construction works. Data quality for environmental assessment of products and construction work. Selection and use of data, 2024

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1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Types and sources of data at product, building and construction works level [Go to Page]
5.1 General
5.2 Sources of generic data for use at product, building and construction works level
5.3 Examples of data and their uses at building and construction works level
5.4 Types of EPD
6 Data quality criteria and aspects for products and construction works [Go to Page]
6.1 General
6.2 International Reference Life Cycle Data System data
6.3 Time-related coverage [Go to Page]
6.3.1 General
6.3.2 General time related criteria
6.3.3 Time-related criteria for construction products and buildings
6.3.4 Time related meta-data for ILCD data sets
6.4 Geographical coverage [Go to Page]
6.4.1 General geography related criteria
6.4.2 Geography related criteria for construction products and buildings
6.4.3 Geography related meta-data for ILCD data sets
6.5 Technological coverage [Go to Page]
6.5.1 General
6.5.2 Technology-related criteria at product level
6.5.3 Technology related criteria for data quality at building level
6.5.4 Technology related meta-data for ILCD data sets
6.6 Aspect of Precision [Go to Page]
6.6.1 General
6.6.2 Precision related meta-data for ILCD data sets
6.7 Aspect of Completeness [Go to Page]
6.7.1 General
6.7.2 Aspect of Completeness at product level
6.7.3 Aspect of Completeness at building level
6.7.4 Completeness related meta-data for ILCD data sets
6.8 Aspect of Consistency [Go to Page]
6.8.1 General
6.8.2 Consistency related meta-data for ILCD data sets
6.9 Sources of the data
6.10 Meta-data for ILCD data sets related to Sources of data
7 Data Quality at Product level [Go to Page]
7.1 Assessing Data Quality at product level [Go to Page]
7.1.1 General
7.1.2 Relevant data
7.1.3 Assessing data quality of average or specific data
7.1.4 Assessing data quality of generic data
7.1.5 Assessing data quality of the final EPD
7.2 Selecting and Collecting data at product level [Go to Page]
7.2.1 General
7.2.2 Selecting raw data [Go to Page]
7.2.2.1 General
7.2.2.2 Time representativeness
7.2.2.3 Geographical representativeness
7.2.2.4 Technological representativeness
7.2.2.5 Completeness
7.2.3 Selection of specific and generic data [Go to Page]
7.2.3.1 General
7.2.3.2 Selection of specific data from suppliers
7.2.3.3 Selecting generic data
7.2.3.4 Time related representativeness
7.2.3.5 Geographical representativeness
7.2.3.6 Technological coverage
7.2.3.7 Consistency
7.2.3.8 Plausibility
7.2.3.9 Sources of the data
7.3 Reporting data quality at Product Level [Go to Page]
7.3.1 General
7.3.2 Reporting data quality in the project report
7.3.3 Reporting data quality in the EPD
7.3.4 Other data quality information in the EPD
7.3.5 Providing the EPD in ILCD format
8 Data quality at building level [Go to Page]
8.1 General
8.2 Assessment during specific design and decision steps/stages
8.3 Assessing data quality at building level [Go to Page]
8.3.1 General
8.3.2 Time related
8.3.3 Geography related
8.3.4 Technology Related
8.3.5 Completeness [Go to Page]
8.3.5.1 General
8.3.5.2 Criteria for exclusion of inputs and outputs
8.3.5.3 Completeness criteria for life cycle information modules (scope)
8.3.5.4 Completeness criteria of the quantification of the building’s composition
8.3.5.5 Data gaps
8.3.6 Consistency
8.3.7 Plausibility
8.3.8 Precision
8.4 Selection of quantity data, environmental data and other information [Go to Page]
8.4.1 General
8.4.2 Selecting data to describe the building
8.4.3 Selection of quantity data for the building assessment
8.4.4 Selection of environmental data for products and processes for the building assessment [Go to Page]
8.4.4.1 General
8.4.4.2 Selecting data - EPD data
8.4.4.3 Use of EPD data
8.4.4.4 Adaptation of gate to grave information (Modules A4 to C4) and Module D
8.4.4.5 Adjustment factors
8.5 Data quality of the assessment results of the building’s environmental performance [Go to Page]
8.5.1 General
8.5.2 Data quality evaluation of quantification
8.5.3 Data quality evaluation during Type 1 and Type 2 Assessments
8.5.4 Data quality evaluation during Type 2, Type 3 and Type 4 assessments
8.5.5 Summarizing data quality
8.6 Databases, data set providers and tools
8.7 Reporting data quality generally at building level
8.8 Verification and review
9 Data quality at civil engineering works level
Annex A (informative)Overview of definitions used in this document and those in EN 15804 and PEF and Level(s) [Go to Page]
A.1 Overview of definitions
A.2 Foreground and background data
A.3 Raw data
A.4 Specific and generic data
Annex B (informative)Mass Balance at product level
Annex C (informative)Examples of reporting data quality in EPD
Annex D (informative)Examples of the use of a data selection at building level depending on goal and scope and data quality assessment [Go to Page]
D.1 General
D.2 Early-stage design – no materials chosen
D.3 Early-stage design – Some materials chosen
D.4 Detailed Design Stage – Cladding comparison
D.5 Building Assessment for planning or regulatory purposes
D.6 Building Completion - As built assessment
Annex E (normative)Avoiding double counting in the selection of specific and generic data for energy at product and building level [Go to Page]
E.1 General [Go to Page]
E.1.1 General guidance
E.1.2 Overarching requirements for avoiding double counting in the selection of specific and generic data for energy at product and building level [Go to Page]
E.1.2.1 Avoiding double counting
E.1.2.2 Ensuring transparency
E.1.2.3 Use of Contractual instruments
E.2 Avoiding double counting in the selection of specific and generic data for energy at product and building level [Go to Page]
E.2.1 Overarching Principles [Go to Page]
E.2.1.1 General
E.2.1.2 Requirements for contractual instruments
E.2.1.3 Requirement for residual mix
E.2.1.4 Recommendation for consistent use of contractual instruments and residual mix
E.2.2 Product level Electricity – modelling foreground, upstream and downstream processes within control of the manufacturer(s) [Go to Page]
E.2.2.1 General
E.2.2.2 Electricity from the grid
E.2.2.3 Electricity from a directly connected supplier
E.2.2.4 Internally generated electricity
E.2.2.5 Requirement for modelling of electricity with contractual instruments
E.2.2.6 Requirement for transparency
E.2.3 Product level Biogas and the gas network – modelling foreground, upstream and downstream data within the control of the manufacturer(s) [Go to Page]
E.2.3.1 General
E.2.3.2 Biogas from the gas network
E.2.3.3 Biogas from a directly connected supplier
E.2.3.4 Internally generated biogas
E.2.3.5 Requirement for modelling of biogas with contractual instruments
E.2.3.6 Requirement for transparency
E.2.4 Product level - Other energy – modelling foreground, upstream and downstream data in the control of the manufacturer(s) [Go to Page]
E.2.4.1 General
E.2.4.2 Requirement for modelling of other energy with contractual instruments
E.2.4.3 Requirement for transparency
E.2.5 Product level - Energy – modelling upstream data (A1-A3) not in the control of the manufacturer(s)
E.2.6 Product Level Energy – modelling downstream data (A4-C4 and Module D)
E.2.7 Building Level Energy – modelling energy use in the building in the Construction Stage, Use Stage, End-of-life stage and Module D2
E.2.8 Transparency [Go to Page]
E.2.8.1 Reporting at product level in the Project Report
E.2.8.2 Reporting in EPD
E.2.8.3 Reporting at Building Level in the Project Report
E.2.8.4 Reporting in Building Level Communication
Annex F (informative)Data quality scheme for building level based on Level(s) [Go to Page]

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