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General comment The data selected for LCA originate from ITB-LCI questionnaires completed by WISNIOWSKI Sp. z o.o. S.K.A. using the inventory data, ITB and Ecoinvent v. 3.9 databases and KOBiZE. KOBiZE data is supplemented with Ecoinvent v. 3.9 data on the national electricity mix impact where no specific indicator data is provided. No specific data collected is older than five years and no generic datasets used are older than ten years. The representativeness, completeness, reliability, and consistency are judged as good. Polish electricity was calculated based on Ecoinvent v 3.9 supplemented by actual national KOBiZE data.
The allocation rules used for this EPD are based on general ITB PCR A. Production of the residential and industrial fencing systems a line process conducted in the manufacturing plant located in Wieloglowy (Poland). All impacts from raw materials extraction and processing are allocated in module A1 of the LCA. Impacts from the line production of WISNIOWSKI Sp. z o.o. S.K.A. were inventoried and 38.07% was allocated to production of the residential and industrial fencing systems based on the products mass basis. Water and energy consumption, associated emissions and generated wastes are allocated to module A3. Packaging materials were taken into consideration.
The life cycle analysis (LCA) of the declared products covers: product stage – modules A1-A3, end of life – modules C1-C4 and benefits and loads beyond the system boundary – module D (cradle-to-gate with options) in accordance with EN 15804+A2 and ITB PCR A. Energy and water consumption, emissions as well as information on generated wastes were inventoried and were included in the calculations. It can be assumed that the total sum of omitted processes does not exceed 5% of all impact categories. In accordance with EN 15804+A2, machines and facilities (capital goods) required for the production as well as transportation of employees were not included in LCA.
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