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BS EN 15941:2024 – TC

BS EN 15941:2024 – TC

$280.87

Tracked Changes. Sustainability of construction works. Data quality for environmental assessment of products and construction work. Selection and use of data

Published By Publication Date Number of Pages
BSI 2024 191
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This document supports the data quality assessment and selection of data for product-level Environmental Product Declarations (EPD) according to the core product category rules of EN 15804 and for the environmental performance assessment of buildings according to prEN 15978 1 in a consistent way. It can also be used to assess and select data for the environmental assessment of civil engineering works according to EN 17472. It defines data quality requirements with respect to temporal, technological and geographical representativeness for the data used to calculate the Life Cycle Assessment (LCA) based indicator results of the EPD and for construction works when applying EPD, life cycle inventory data or other LCA based information, and generates a hierarchy to support the selection of the most appropriate data with regard to data quality. It also addresses the reporting of data quality at product and building level.

PDF Catalog

PDF Pages PDF Title
103 undefined
110 1 Scope
2 Normative references
111 3 Terms and definitions
113 4 Abbreviations
5 Types and sources of data at product, building and construction works level
5.1 General
114 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
117 5.4 Types of EPD
120 6 Data quality criteria and aspects for products and construction works
6.1 General
6.2 International Reference Life Cycle Data System data
6.3 Time-related coverage
6.3.1 General
121 6.3.2 General time related criteria
6.3.3 Time-related criteria for construction products and buildings
122 6.3.4 Time related meta-data for ILCD data sets
123 6.4 Geographical coverage
6.4.1 General geography related criteria
124 6.4.2 Geography related criteria for construction products and buildings
6.4.3 Geography related meta-data for ILCD data sets
125 6.5 Technological coverage
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
126 6.5.4 Technology related meta-data for ILCD data sets
127 6.6 Aspect of Precision
6.6.1 General
128 6.6.2 Precision related meta-data for ILCD data sets
6.7 Aspect of Completeness
6.7.1 General
129 6.7.2 Aspect of Completeness at product level
6.7.3 Aspect of Completeness at building level
130 6.7.4 Completeness related meta-data for ILCD data sets
6.8 Aspect of Consistency
6.8.1 General
131 6.8.2 Consistency related meta-data for ILCD data sets
133 6.9 Sources of the data
6.10 Meta-data for ILCD data sets related to Sources of data
134 7 Data Quality at Product level
7.1 Assessing Data Quality at product level
7.1.1 General
7.1.2 Relevant data
135 7.1.3 Assessing data quality of average or specific data
136 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
7.2.1 General
137 7.2.2 Selecting raw data
7.2.2.1 General
138 7.2.2.2 Time representativeness
7.2.2.3 Geographical representativeness
7.2.2.4 Technological representativeness
7.2.2.5 Completeness
139 7.2.3 Selection of specific and generic data
7.2.3.1 General
7.2.3.2 Selection of specific data from suppliers
140 7.2.3.3 Selecting generic data
7.2.3.4 Time related representativeness
141 7.2.3.5 Geographical representativeness
7.2.3.6 Technological coverage
7.2.3.7 Consistency
142 7.2.3.8 Plausibility
7.2.3.9 Sources of the data
7.3 Reporting data quality at Product Level
7.3.1 General
7.3.2 Reporting data quality in the project report
143 7.3.3 Reporting data quality in the EPD
145 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
8.1 General
146 8.2 Assessment during specific design and decision steps/stages
8.3 Assessing data quality at building level
8.3.1 General
147 8.3.2 Time related
8.3.3 Geography related
8.3.4 Technology Related
148 8.3.5 Completeness
8.3.5.1 General
149 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
150 8.3.5.5 Data gaps
8.3.6 Consistency
151 8.3.7 Plausibility
8.3.8 Precision
8.4 Selection of quantity data, environmental data and other information
8.4.1 General
8.4.2 Selecting data to describe the building
152 8.4.3 Selection of quantity data for the building assessment
153 8.4.4 Selection of environmental data for products and processes for the building assessment
8.4.4.1 General
8.4.4.2 Selecting data – EPD data
154 8.4.4.3 Use of EPD data
155 8.4.4.4 Adaptation of gate to grave information (Modules A4 to C4) and Module D
8.4.4.5 Adjustment factors
156 8.5 Data quality of the assessment results of the building’s environmental performance
8.5.1 General
8.5.2 Data quality evaluation of quantification
157 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
158 8.5.5 Summarizing data quality
159 8.6 Databases, data set providers and tools
8.7 Reporting data quality generally at building level
162 8.8 Verification and review
9 Data quality at civil engineering works level
163 Annex A (informative)Overview of definitions used in this document and those in EN 15804 and PEF and Level(s)
A.1 Overview of definitions
168 A.2 Foreground and background data
A.3 Raw data
A.4 Specific and generic data
169 Annex B (informative)Mass Balance at product level
172 Annex C (informative)Examples of reporting data quality in EPD
174 Annex D (informative)Examples of the use of a data selection at building level depending on goal and scope and data quality assessment
D.1 General
D.2 Early-stage design – no materials chosen
175 D.3 Early-stage design – Some materials chosen
176 D.4 Detailed Design Stage – Cladding comparison
177 D.5 Building Assessment for planning or regulatory purposes
D.6 Building Completion – As built assessment
178 Annex E (normative)Avoiding double counting in the selection of specific and generic data for energy at product and building level
E.1 General
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
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
E.2.1 Overarching Principles
E.2.1.1 General
179 E.2.1.2 Requirements for contractual instruments
180 E.2.1.3 Requirement for residual mix
181 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)
E.2.2.1 General
E.2.2.2 Electricity from the grid
E.2.2.3 Electricity from a directly connected supplier
182 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)
E.2.3.1 General
E.2.3.2 Biogas from the gas network
E.2.3.3 Biogas from a directly connected supplier
183 E.2.3.4 Internally generated biogas
184 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)
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)
185 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
E.2.8.1 Reporting at product level in the Project Report
186 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
187 Annex F (informative)Data quality scheme for building level based on Level(s)

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