Steel as construction material NPCR 013, Rev. 1, Steel as construction material

Transcription

1 PRODUCT-CATEGORY RULES EN NPCR 013rev1 Issue date: Valid to: Steel as construction material NPCR 013, Rev. 1, Steel as construction material

2 Content Content... 2 Introduction... 4 Cross references Scope Normative references Terms and definitions Abbreviations General aspects Objective of the PCR Types of EPD Comparability of EPD of construction products Additional information Ownership, responsibility and liability for the EPD Communication formats Product Category Rules for LCA Product Category Steel products Steel components Life cycle stages and their information modules to be included General A1-A3, Product stage information modules A4-A5, Construction process stage, information modules B1-B5, use stage, information modules related to the building fabric B6-B7, use stage, information modules related to operation of the building C1-C4, end-of-life stage, information modules D, benefits and loads beyond the system boundary, information modules Calculation rules for the LCA Functional unit Declared unit Reference service life (RSL) System boundaries Criteria for the inclusion of inputs and outputs (cut-off) Selection of data Data quality requirements Developing product level scenarios Units Inventory analysis Collecting data Calculation procedures Allocation of input flows and output emissions Impact assessment Content of the EPD Declaration of general information page 2 of 24

3 7.2 Declaration of environmental parameters derived from LCA General Rules for declaring LCA information per module Parameters describing environmental impacts Parameters describing resource use Other environmental information describing waste categories and output flows Scenarios and technical information General Construction process stage Use stage End-of-life Additional information Indoor air Soil and water Aggregation of information modules Project report Verification and validity of an EPD Bibliography APPENDIX A Norwegian conditions and requirements Communication format and content of the Norwegian EPD Treatment of electricity Transport Reference service life Key Environmental Parameters Dangerous substances in the Candidate or Priority lists Candidate or Priority list Scenarios Construction process stage Use stage End-of-life Indoor emissions page 3 of 24

4 Introduction These product category rules (PCR) are intended for companies preparing an Environmental Product Declaration (EPD) for steel as construction material. The purpose of this document is to define clear guidelines for performing the underlying life cycle assessment (LCA) to ensure comparability between EPDs. The PCR is based on and represent a supplement to the European standard EN 15804: Sustainability of construction works Environmental Product Declarations core rules for the product category of construction products. The PCR complies with the ISO standards, ISO 21930: Building construction - Sustainability in building construction Environmental declaration of building products and the requirements of ISO 14025: Environmental labelling and declarations Type III environmental declarations Principles and procedures and the provisions in ISO 14044: Environmental management Life cycle assessment Requirements and guidelines. Definitions from NS-EN ISO 14044:2006 and NS-EN 15804:2012 are reproduced by the Norwegian EPD Foundation under licence from Standard Online AS 01/2012. All rights are reserved. Standard Online makes no guarantees or warranties as to the correctness of the reproduction. See The EPDs based on this PCR-document are covering two perspectives: EPD cradle to gate EPD cradle to grave including beyond life cycle of building and will present data that has been aggregated over the relevant life cycle stages as described in chapter 6 and shown in figure 2. Program operator: Næringslivets Stiftelse for Miljødeklarasjoner P.B Majorstuen, 0303 Oslo The members of the Norwegian PCR Work Group have prepared this PCR. Members of the PCR WG: Norsk Stålforbund Stål og Metallgrosistenes Forening Contiga EMV Construction Skanska Stålfabrikker AK Mekaniske Global & Local miljørådgivning This is a common PCR, but with an appendix A1 giving specific guidelines according to Norwegian requirements. page 4 of 24

5 Cross references Table 1 sums up the most important aspects defined distinctively for this particular product category. More details are given in the following chapters. Table 1: PCR for Steel as construction material executive summary Chapter Topic PCR Steel as construction material 4 Terms and definitions 5.2 Type of EPDs Cradle to gate for all products (A1 with respect to A3) life cycle stages Cradle to grave (A1 C4) Beyond the building life cycle (D) covered 6.1 Definition of product category Functional unit per kg with an expected specified service life Steel as construction material Cross references ISO ISO ISO EN Declared unit per kg Reference service life System boundaries EPD Cradle to grave: Steel components with carrying capacity in buildings EPD Cradle to gate: A1-A3 EPD Cradle to grave: A1-C4 EPD including life beyond the building life cycle: A1-C4 + D Product stage Construction stage A4-A Use stage B1- B End of life C1-C Data quality Scenarios page 5 of 24

6 Chapter Topic PCR Steel as construction material ISO Cross references ISO ISO EN Allocation rules Allocation according to mass [kg] Allocation to co-products should be by economic value when the difference in economic value of these co-products is high (above 25%), in accordance with EN Additional information The content of harmful substances/ chemicals, as well as impacts on indoor environment must be declared in EPD Scope The intended application of this Product Category Rules (PCR) is to give guidelines for development of Environmental Product Declarations (EPD) for Steel as construction material and to further specify the underlying requirements of the LCA. The core rules valid for all construction products are given in standard EN and shall be used by those preparing the EPD. 2 Normative references ISO 14025: 2006, Environmental management Type III environmental declarations Principles and procedure. ISO 21930: 2007, Sustainability in building and construction Environmental declaration of building products. ISO 14044: 2006, Environmental management Life cycle assessment Requirements and guidelines. ISO : 2000, Buildings and constructed assets Service life planning Part 1: General principles. ISO : 2008 Buildings and constructed assets Service life planning Part 8: Reference service life. EN 15804: 2012, Sustainability in construction works Environmental product declarations Core rules for the product category of construction products. EN 15942: 2011, Sustainability of construction works Environmental declarations Communication formats: business to business. page 6 of 24

7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 declared unit quantity of a building product for use as a reference unit in an EPD, based on LCA, for the expression of environmental information needed in information modules Example: Mass (kg), Volume (m³) [ISO 21930] 3.2 functional unit quantified performance of a product system for a building product for use as a reference unit in an EPD based on LCA [ISO 21930] 3.3 information module compilation of data to be used as a basis for a Type III environmental declaration, covering a unit process or a combination of unit processes that are part of the life cycle of a product [ISO 21930] 3.4 life cycle assessment (LCA) compilation and evaluation of the inputs, outputs and the potential environmental impacts of a product system throughout its life cycle [ISO 14040] 3.5 product category group of building products that can fulfill equivalent functions [ISO 21930] 3.6 reference service life service life of a building product that is known or expected under particular set, i.e., a reference set, of in-use conditions and that may form the basis of estimating the service life under other inuse conditions NOTE The reference service life is applied in the functional unit [Adapted from ISO 21930] 3.7 Type III environmental declaration, Environmental product declaration, EPD environmental declaration providing quantified environmental data using predetermined parameters and, where relevant, additional environmental information page 7 of 24

8 [ISO 21930] page 8 of 24

9 4 Abbreviations EPD Environmental product declaration PCR LCA LCI Product category rules Life cycle assessment Life cycle inventory analysis LCIA Life cycle impact assessment RSL Reference service life 5 General aspects 5.1 Objective of the PCR To ensure provision of verifiable and consistent data for an EPD based on LCA and describe reliable scenarios. 5.2 Types of EPD This PCR cover the following types of EPD (see figure 2): EPD 1: Cradle to gate (A1-A3) and beyond the building life cycle (D) for: Type 1.1: Hot rolled steel plates (thickness 3 60 mm) Type 2.1: Hot rolled open H, I, U, L - steel sections Type 3.1: Cold formed hollow steel sections Type 4.1: Hot-rolled hollow steel sections Type 5.1: Reinforcement EPD 2: Cradle to grave as constructed products (A1 C4) and beyond the building life cycle (D) for: Type 1.2: Welded plated beams; e.g hat sections Type 2.2: Hot rolled open H, I, U, L - steel sections Type 3.2: Cold formed hollow steel sections Type 4.2: Hot-rolled hollow steel sections Type 5.2: Reinforcements 5.3 Comparability of EPD of construction products General rules for comparability are given in the standard EN 15804:2012, clause 5.3. Contents of EPD project report and EPD shall be as specified in EN 15804:2012, clause Additional information See clause 7.4. page 9 of 24

10 5.5 Ownership, responsibility and liability for the EPD The manufacturer or a group of manufacturers are the sole owners and have liability and responsibility for an EPD. 5.6 Communication formats The communication format of the EPD shall be in accordance with EN 15942: 2011 Sustainability of construction works Environmental product declarations Communication formats: business to business. 6 Product Category Rules for LCA 6.1 Product Category The product group Steel as construction material comprises all kinds of steel components with a defined carrying capacity in buildings according to NS-EN (årstall), NS-EN (årstall) and NS-EN (årstall) Steel products Type 1.1: Hot rolled steel plates (thickness 3 60 mm) used in building frame structures, made by European manufacturers. Dimensions: t= The requirements of the EN standard are applied. The standard steel grade is S355. Type 2.1: Hot rolled open H, I, U, L - steel sections and wide flats are hot-rolled sections used in frame structures made by European manufacturers. Dimensions: IPE , HEA/B/M , UNP/UPE , L , L 65x50-200x150, T and wide steels: , t=5-40. The requirements of the EN standard are applied. The standard steel grade is S355. Type 3.1: Cold formed hollow steel sections (CFSHS): Circular, square and rectangular sections are used in building frame structures, made of hotrolled steel strip by cold-rolling and welding by European manufacturers. Dimensions: Square HS: 25x2-300x12,5. Rectangular HS: 50x25x2-400x200x12,5 and Circular HS: 21,3x2-711x60 The requirements of the EN standard are page 10 of 24

11 applied. The standard steel grade is S355. Type 4.1: Hot-finished hollow steel sections (HFSHS): Circular, square and rectangular sections are used in building frame structures, made of hotrolled steel by European manufacturers. Dimensions: Square HS: 40x3-400x20. Rectangular HS: 50x30x3,2-500x300x20 and Circular HS: 21,3x2-711x60. The requirements of the EN standard are applied. The standard steel grade is S355. Type 5.1: Steel for the reinforcement of concrete, weldable, made by European manufacturers. Dimensions: D= The requirements of the EN standard are applied. The standard steel grade is B500. Figure 1: Example of steel products; Type 1.1, Type 2.1, Type 3.1, Type 4.1, Type Steel components Steel components are used to construct structures for buildings. The components can have shapes and qualities according to Type , and the structures shall have carrying capacity according to predefined standards. The structures are static and part of the building. They can be built-in structures or open structures. Type 1.2: Welded plated beams; HSQ, ISQ and HSK sections made of welded hot-rolled steel plates used in building frame structures. Plates are made by European manufacturers. Sections are prefabricated and erected on-site by Norwegian steel contractors. Dimensions: H = , B1 = , B2 = , d = 5-12, t1/t2 = The requirements of the EN and EN standards are applied. The standard steel grade is S355. page 11 of 24

12 Type 2.2: I, H, U, L, T and wide flats are hot-rolled sections used in frame structures made by European manufacturers. Steel components are prefabricated and erected on-site by Norwegian steel contractors. Dimensions: IPE , HEA/B/M , UNP/UPE , L , L 65x50-200x150, T and wide steels: , t=5-40. The requirements of the EN and EN standards are applied. The standard steel grade is S355. Type 3.2 Cold formed structural hollow sections (CFSHS): Circular, square and rectangular sections are used in building frame structures, made of hotrolled steel strip by cold-rolling and welding by European manufacturers. Steel components are prefabricated and erected on-site by Norwegian steel contractors. Dimensions: Square HS: 25x2-300x12,5. Rectangular HS: 50x25x2-400x200x12,5 and Circular HS: 21,3x2-711x60. The requirements of the EN and EN standards are applied. The standard steel grade is S355. Type 4.2 Hot finished structural hollow sections (HFSHS): Circular, square and rectangular sections are used in building frame structures, made by European manufacturers. Steel components are prefabricated and erected on-site by Norwegian steel contractors. Dimensions: Square HS: 40x3-400x20. Rectangular HS: 50x30x3,2-500x300x20 and Circular HS: 21,3x2-711x60. The requirements of the EN and EN standards are applied. The standard steel grade is S355. Type 5.2: Reinforcement steel for concrete, weldable, made by European manufacturers. Straight ribbed bars, cut and bend, mesh, and combinations of these (special welded products) are prefabricated and erected on-site by Norwegian fabricators & prefab contractors. Dimensions: D= The requirements of the EN and EN standards are applied. The standard steel grade is B500. Figure 2: Example of steel components; Type 1.2, Type 2.2, Type 3.2, Type 4.2, Type 5.2. page 12 of 24

13 6.2 Life cycle stages and their information modules to be included General The environmental information of an EPD covering all life cycle stages shall be subdivided into the information module groups A1-A3, A4-A5, B1-B5, B6-B7, C1-C4 and module D. Only the declaration on the product stage modules, A1-A3, is required for compliance with the standard. The declaration of the modules of the other life cycle stages is optional. Information modules within any of the life cycle stages are communicated depending on the types of EPD as specified in 5.2. They include impacts and aspects related to losses in the module in which the losses occur (i.e. production, transport, and waste processing and disposal of the lost waste products and materials) A1-A3, Product stage information modules - A1, raw materials extraction and processing - A2, transport to manufacturer - A3, manufacturing of steel components A4-A5, Construction process stage, information modules - A4, transport to the building site - A5, installation in building B1-B5, use stage, information modules related to the building fabric - B1, use not relevant for the LCA - B2, maintenance, only for exposed structures, not relevant for inbuilt structures - B3, repair - B4, replacement - B5, refurbishment B6-B7, use stage, information modules related to operation of the building - B6, operational energy use not relevant - B7, operational water use not relevant C1-C4, end-of-life stage, information modules - C1, deconstruction, demolition - C2, transport to processing-plant - C3, processing for reuse or recycling - C4, disposal only relevant for reinforcement steel D, benefits and loads beyond the system boundary, information modules - D, reuse, recovery, recycling potentials page 13 of 24

14 6.3 Calculation rules for the LCA Functional unit This PCR is valid for all steel components, manufactured in accordance with EN 1090 and EN The functional unit (cradle to grave) per kg with an expected specified service life Results should be displayed per functional unit based on scenarios for construction process stage, use stage and end of life stage Declared unit This PCR is valid for all steel products that correspond with the standards EN 10025, EN 10219, and EN The declared unit (cradle to gate) is per kg Reference service life (RSL) Service life has to be defined in compliance with EN15804 or as minimum based on verified European statistic data for the considered building. RSL information to be declared in the EPD covering the use stage shall be provided and documented by the manufacturer System boundaries General The life cycle stages for steel as construction material are shown in Figure 2. See also Figure 1 in standard EN 15804: The different life cycle stages for steel as construction material are shown in Figure 3. The environmental impact shall be documented for each of the life cycle stages and in total. page 14 of 24

15 Figure 2 Life cycle stages for steel as construction material Product stage - A1, Extraction of new materials, reuse of materials from previous systems, processing of secondary materials - A2, Transport to the manufacturer - A3, Production of steel components, manufacturing of packaging Construction stage (on the building site) - A4, transport to the building site - A5, storage of products including provision of heating and cooling, not relevant waste, waste processing, installation of the product including ancillary products and energy required for installation Use stage - B1, not relevant for the LCA - B2, production and transport of any component and ancillary products used for maintenance, including cleaning, transport of any waste from maintenance process, end of life process of any waste from maintenance - B3, production of repaired part, use of energy, transportation of repaired part, end treatment of repaired part - B4, production of replacement part, use of energy, transportation of replenishment part, end treatment of replenishment part page 15 of 24

16 - B5, production of components used for refurbishment, related energy used, transport of waste of the refurbishment - B6, not relevant - B7, not relevant End-of-life stage - C1, deconstruction, on site sorting - C2, transport - C3, processing for reuse and recycling - C4, disposal, only relevant fore reinforcement Benefits and loads beyond the product system boundary in module D - D, information of net benefits and loads that have not been allocated as co-products and that is beyond the life-cycle of the building Criteria for the inclusion of inputs and outputs (cut-off) General cut-off criteria are given in standard EN 15804: 2012, clause The listed procedures shall be followed for the execution of inputs and outputs: - all inputs and outputs to a (unit) process shall be included in the calculation, for which data are available. Data gaps may be filled by conservative assumptions with average or generic data. Any assumptions for such choices shall be documented. - In case of insufficient data or data gaps for a unit proves, the cut-off criteria shall be 1 % of renewable and non-renewable primary energy usage and 1 % of the total mass input of that unit process. The total of neglected input flows per module (A1-A3, etc.) shall be the maximum of 5 % of energy usage and mass - Particular care should be taken to include material and energy flows known to have the potential to cause significant emission into air and water or soil related to the environmental indicators Selection of data The application of generic and specific data shall follow the model in Table 1. Specific data derived from the production process shall be used. Generic data can be used for processes the manufacturer cannot influence, i.e. up- and downstream processes. Table 1: Application of specific and generic data Module A1-A3 A4 and A5 B1-B7 C1-C4 Production of Product Installation Use process Modules commodities, raw materials manufacture process Upstream Downstream processes processes Process type Generic data Processes the manufacturer has influence over Manufacturer s Generic data End-of-life process page 16 of 24

17 Data type average or specific data Data quality requirements General requirements and guidelines concerning use of generic and specific data and the quality of those are described in the standard EN 15804: 2012, clause and In addition the following rules shall be applied: For manufacturing of product, specific annual data shall be applied. Actual data age (when data was collected) shall be stated. If site-specific data with certificate of origin cannot be obtained, the mix of electricity used shall be the grid mix in the country where main energy consuming processes take place. The mix of electricity (calculation procedure) shall be documented. For directly consumed heat and electricity, infrastructure shall be included Hazardous waste shall be specified according to relevant national regulations Developing product level scenarios Scenarios shall support the calculation of information modules except the modules A1-A3. A scenario shall be based on relevant technical information and is shown in 7.3: - A4: Transport to the building site (e.g. truck, railway, boat) - A5: Installation in the building (e.g. Auxiliary, Water consumption, Electricity consumption, Other energy carriers, Material loss, Output materials from waste treatment, Dust in the air) - B2: Maintenance (e.g. Maintenance cycle, Auxiliary, Other resources, Water consumption, Electricity consumption, Other energy carriers, Material loss) - B3: Repair (e.g. Maintenance cycle, Auxiliary, Other resources, Water consumption, Electricity consumption, Other energy carriers, Material loss) - B4: Replacement (e.g. Maintenance cycle, Auxiliary, Other resources, Water consumption, Electricity consumption, Other energy carriers, Material loss) - B5: Refurbishment (e.g. Maintenance cycle, Auxiliary, Other resources, Water consumption, Electricity consumption, Other energy carriers, Material loss) - C1: Deconstruction - C2: Transport from site to recycling plant (e.g. truck, railway, boat) - C3: Processing for reuse and recycling (e.g. Collected separately, Collected as mixed construction waste, Reuse, Recycling, To landfill) - C4: Disposal, only relevant fore reinforcement Units SI units shall be used. page 17 of 24

18 6.4 Inventory analysis Collecting data Data collection shall follow the guidelines provided in EN ISO 14044:2006, clause Calculation procedures The calculation procedures described in EN ISO shall apply Allocation of input flows and output emissions General allocation rules including closed-loop and open-loop allocation procedures are given in the standard EN 15804: 2012 clause Allocation should be performed in the following order 1 Physical properties (e.g. mass) 2 Economic value Flows leaving the system and that are at the end-of-waste boundary of the products stage (A1- A3), should be allocated as co-products by physical properties or by economic value when the unit price difference is larger than 25%. For the calculation of module D, a justified value-correction factor should be used to reflect the functional equivalence of a product substituting primary raw materials. 6.5 Impact assessment The characterisation factors in the European Reference Life Cycle Database (ELCD) provided by the European Commission shall be used. Parameters shall be declared and reported according to standard EN 15804: 2012, clause Environmental impact shall be declared as stated in EN 15804: 2012, clause 7.2.3, table 3: Global warming potential, GWP, in kg CO 2 equivalents, 100 years. Depletion potential of the stratospheric ozone layer, ODP, in kg CFC 11 equivalents, 20 years. Acidification potential of land and water sources, AP, in kg SO 2 equivalents. Eutrophication potential, EP in kg PO 4 equivalents. Formation potential of tropospheric ozone photochemical oxidants, POCP, in kg C 2 H 4 equivalents. Abiotic depletion potential for non-fossil fuels in Sb equivalents. 1 Abiotic depletion potential for fossil resources in MJ, net calorific value The indicator describing the depletion of abiotic resources is subject to further scientific development. The use of this indicator is intended to be reviewed during the revision of the Standard EN 15804: page 18 of 24

19 Waste to disposal should be declared as: Hazardous waste (kg) according to EU directive 91/689/EEC and 75/442/EE. or relevant national regulations Non hazardous waste (kg) Radioactive waste (kg) 7 Content of the EPD 7.1 Declaration of general information The content of the EPD shall follow the instruction given in EN 15804: 2012 clause 7.1 and 7.2. The declaration of material content of the product shall list as a minimum substances contained in the product that are listed in the Candidate list of Substances of Very High Concern for authorization when their content or the sum of the different contents exceeds the limits for registration with the European Chemicals Agency. 7.2 Declaration of environmental parameters derived from LCA General Documentation of technical information for the construction process shall follow the requirements given in EN 15804: 2012 clause Transport shall be allocated based on weight or volume. Generic data may be used for emission factors from the transportation vehicle Rules for declaring LCA information per module The rules shall follow EN 15804: 2012, clause Parameters describing environmental impacts Parameters shall be specified according to EN 15804: 2012, table Parameters describing resource use Parameters shall be specified according to EN 15804: 2012, table Other environmental information describing waste categories and output flows Parameters shall be specified according to EN 15804: 2012, table 5 and Scenarios and technical information General Scenarios shall be described for construction process stage, use stage and end of life stage. page 19 of 24

20 7.3.2 Construction process stage A4, Transport from production site to the construction site. If no European information is available, national transport scenarios and distances may be used and documented in the EPD project report. Information shall be given according to EN 15804: 2012, table A5, Installation The installation phase includes all materials and activities connected to installation of steel components and kits of steel components. Information shall be given according to EN 15804: 2012, table 8. This includes use of machines, transportation, lifting equipment and energy and fuel consumption of machinery. Personnel activities and transport of personnel shall not be included, as well as environmental impact from production of capital goods. If the EPD deviates from the predefined scenarios, this shall be clearly stated and justified Use stage - B1, This module shall not be part of the LCA, but the release of substances from the installed product shall be included as additional information as specified in and B2- B5, information required for maintenance, repair, replacement and refurbishment shall be given according to EN 15804: 2012, Table 9 (use stage reference to the building fabric) and Table 10 (reference service life). Maintenance/replacements are to be modelled according to manufacturers guidelines. The necessary maintenance of the steel construction that will be required to reach the expected reference service life shall be described. - B6 B7, not relevant The reference service life of steel as construction material is depending on materials used and location. The number of replacements of steel as construction material shall be declared accordingly to the building s reference service life. Cleaning activities of steel as construction material during the use stage shall be included. If hazardous or toxic materials are used for cleaning, the activity shall be included and documented End-of-life End of life shall be specified according to EN 15804: 2012, Table Additional information Indoor air The emissions to air shall be provided for products exposed to indoor air after their installation in buildings during the use stage. This shall be done according to the horizontal standard for measurements of release of regulated dangerous substances. Until the horizontal standards are page 20 of 24

21 available, the EPD does not need to include this information, but the emissions should be declared according to national standards and practices Soil and water A description of toxicity effects occurring in the use of the product, e.g. in processes such as leaching, shall be given. Releases to ground and surface water during the use of the steel components shall be declared in accordance with national standards and practices Aggregation of information modules Indicators declared in the individual information modules shall not be added up in any combination of the individual information modules into a total or sub-total of the life cycle stages A, B, C or D, with exception of A1, A2 and A3 that may be aggregated. 8 Project report The project report is the systematic and comprehensive summary of the project documentation supporting the verification of an EPD. The project report shall record that the LCA based information and the additional information as declared in the EPD meet the requirements of EN It shall be made available to the verifier with the requirements on confidentiality stated in ISO The project report is not part of the public communication. The project report shall follow the instructions given in ISO 14044, clause 5.2 and EN15804:2012 clause 8. 9 Verification and validity of an EPD The process of verification of an EPD shall be in accordance with EN ISO 14025, clause 8 and ISO 21930, clause 9. After verification the EPD is valid for 5 years. An EPD does not have to be recalculated after 5 years, if the underlying data has not changed significantly. Approved , valid until Norwegian EPD Foundation, Verification committee. Sverre Fossdal Panel chairman 10 Bibliography EN 10025: 2004 Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels page 21 of 24

22 EN 10219: 2006 Cold formed welded structural hollow sections of non-alloy and fine grain steels. EN 10210: 2006 Hot finished structural hollow sections of non-alloy and fine grain steels ISO 21930: 2007 Sustainability in building construction - Environmental declaration of building products ISO : 2008 Buildings and constructed assets Service life planning Part 8: Reference service life 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. ISO 14044: 2006 Environmental management Life cycle assessment Requirements and guidelines. EN : 2008 Execution of steel structures and aluminium structures: Technical requirements for steel structures. EN 13670: 2009 Execution of concrete structures. page 22 of 24

23 APPENDIX A1 (informative) 1 Norwegian conditions and requirements This appendix describes Norwegian scenarios and other recommendations given by the program operator The Norwegian EPD Foundation. 2 Communication format and content of the Norwegian EPD The communication format of the EPD shall be in accordance to EN 15942:2010 EN referees to EN and the presentation template shown in 3 Treatment of electricity The electricity mix used shall be shown in the EPD as emissions of g CO 2 -equivalents per kwh or g CO 2 -equivalents per MJ. 4 Transport Transport from Production site to central warehouse in Norway shall be shown. For Norwegian manufacturer this is set to 50 km. 5 Reference service life Reference service life shall be 100 years 6 Key Environmental Parameters Key Environmental parameters (maximum 5) shall be shown in a table surrounded by a red frame in the EPD. Parameters to be shown are; Global warming potential, GWP, in kg CO 2 -equivalents Total energy consumption in MJ Dangerous substances on EU Candidate list and the Norwegian Priority list and quantity in kg 6.1 Dangerous substances in the Candidate or Priority lists If the product contains substances given on the EU Candidate and Norwegian Priority lists, they shall be declared and justified. If no such substances occur the following statement shall be given in the EPD: The product contains no substances given on the EU Candidate and Norwegian Priority lists. page 23 of 24

24 6.2 Candidate or Priority list Substances on the EU Candidate list and the Norwegian Priority list are available at: See also BREEAM NOR A20 List ( 7 Scenarios 7.1 Construction process stage Generic data for transport to building site in Norway from domestic manufacturers (A4) and installation (A5) provided by Norsk Stålforbund and Stål og Metallgrosistenes Forening (EN , EN 13670) shall be used to calculate this module. This should include average transport forms and distances to building site, on-site energy usage (for lifting etc.), assumed maintenance (for out door exposed/not outdoor exposed). Reference figures can be used. 7.2 Use stage Maintenance and replacements are to be performed according to manufacturer's guidelines. Steel construction s maintenance, repair and replacement are described in SINTEF Building Design Sheets 7.3 End-of-life The current practice of waste management of the product shall be described including the utilization of reused, recycled or recovered materials. 8 Indoor emissions For painted and lacked products in contact with indoor air, test according to requirements in EN- ISO and BREEAM-NOR Hea 9. It is not necessary to do emission tests on the clean steel construction. Indoor tests should also comply with requirements in the M1-method and the Breeam Nor A20- list. page 24 of 24