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General comment Allocation is required if some material, energy, and waste data cannot be
measured separately for the product under investigation. Allocation used in
Ecoinvent 3.10.1/3.11/3.12 environmental data sources follow the
methodology ‘allocation, Cut-off, EN 15804+A2‘. All allocations are done as
per the reference standards and the applied PCR. In this study, allocation has
been done in the following ways:
In this study, as per EN 15804, allocation is conducted in the following order;
1. Allocation should be avoided.
2. Allocation should be based on physical properties (e.g. mass, volume)
when the difference in revenue is small.
3. Allocation should be based on economic values.
Allocation regarding material or energy substitution are carried out according
to EN 15804 (division between C and D modules).
Most of the data is product specific. For the use of energy (electricity and use
of fuels) only facility-level data were available. Energy consumed during the
manufacturing stage has been allocated to the analysed product based on the
mass of produced products.
The production line only produces single type of product with some
difference to its form. However, these differences have a minimal impact on
the manufacturing process. As the processes for all variations of the products
produced at the production line are very similar regardless of the end
dimensions, the raw materials, packaging, ancillary materials, energy
consumption and waste streams are all calculated by dividing the total inputs
flows by the total output of the production line. Also, no variations in
emissions per declared unit are reported. The final product includes a 4 mm
thick seal which size is independent of the profile dimensions. Annex 1
includes a detailed overview of the variations in the size of products.
Data collection for production, transport, and packaging was conducted using
time and site-specific information. Data for 77% of raw materials per weight
was gained from EPD-s. Manufacturer provided specific and generic data
were used for the product’s manufacturing stage. This EPD is product and
factory specific. Data used from the databases covers the period 2021-2026.
CUT-OFF CRITERIA
The study does not exclude any modules or processes which are stated
mandatory in the reference standard and the applied PCR. The study does not
exclude any hazardous materials or substances. The study includes all major
raw material and energy consumption. All inputs and outputs of the unit
processes, for which data is available for, are included in the calculation.
There is no neglected unit process more than 1% of total mass or energy
flows. The module specific total neglected input and output flows also do not
exceed 5% of energy usage or mass. Due to this the following inputs were
neglected: adhesive, packaging tape, packaging film and emulsion, raw
material packaging waste and emulsion waste, screws and power drills used
for assembly.
The production of capital equipment, construction activities, and
infrastructure, maintenance and operation of capital equipment, personnel
related activities, energy and water use related to company management and
sales activities are excluded.
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