Page 173 - Materials Chemistry, Second Edition

158 A. Bjørn et al.

Table 9.7 Scheme for documenting foreground processes
Outputs Quantity Unit Source/note
Reference flow (main product or function)
Reference 1 kg E.g.: input and output flows are not scaled to the functional unit of
flow the product system
Other outputs (avoided product or function; waste to treatment)
Avoided – kg E.g. please see Table A1 for the corresponding unit process
product 1
Waste 1 – kg E.g. ecoinvent ver. 3.0
Waste 2 – m 3 E.g. ecoinvent ver. 3.0
Waste n – m 3 E.g. ecoinvent ver. 3.0
Emissions (to air; water; soil)
Emission 1 – kg E.g. please see “Appendix” for details on calculation of emissions
Emission 2 – kg E.g. please see “Appendix” for details on calculation of emissions
Emission n – m 3 E.g. please see “Appendix” for details on calculation of emissions
Inputs Quantity Unit Source/note
Materials
Material – kg E.g. please see Table A2 for the corresponding unit process
1
Material – kg E.g. please see Table A3 for the corresponding unit process
2
Material – m 3 E.g. ecoinvent ver. 3.0
n
Energy
Energy 1 – MJ E.g. ecoinvent ver. 3.0; see Table 1 in the main report for the source of
values
Energy 2 – MJ E.g. ecoinvent ver. 3.0; see Table 1 in the main report for the source of
values
Energy n – MJ E.g. please see Table A4 for the corresponding unit process
Resources
Resource – kg E.g. ecoinvent ver. 3.0
1
Resource – kg E.g. ecoinvent ver. 3.0
2
Resource – m 3 E.g. ecoinvent ver. 3.0
n
E.g. ecoinvent ver. 3.0
Units are illustrative. Note that for waste treatment processes the reference flow is usually a material
input. Note that the column ‘source/note’ is based on fictive examples and references included therein are
not a part of this textbook chapter

section of a report where details of a calculations (e.g. emissions) are provided; and
finally, reference to other unit process tables that are input or output to the process
of interest. Because the number of processes to be documented is often large, tables
like Table 9.7 are usually best reported in an appendix to the LCA report.