balance sheet structure and system limt

bvdm diagram: balance sheet structure and system limts

When manufacturing print products, CO2 emissions are generated directly and indirectly. Print buyers increasingly demand a statement of the quantities of this greenhouse gas generated by the print job. A complex situation is hidden behind a seemingly simple question. During the manufacturing of print products, not only a multitude of different materials, additives and other compounds are needed but also, depending on the complexity of the print job, many individual worksteps must be carried out. An absolutely complete calculation of all possible CO2 sources of a print product would only be possible with an unjustifiably high effort. Furthermore, certified CO2 equivalents are missing, in particular for many additives and compounds used in the upstream chain of print production. The valid Life Cycle Assessment standards, which can be used for the CO2 balance sheet, do not require a 100 percent analysis. It is permissible to constitute the system limits according to the CO2 relevance. Thus the balance sheet structure of the bvdm CO2-Calculator includes the most important materials and production steps, including the identifiable transportation operations and the disposal of production waste and residual materials. The usage phase of the print products is unaccounted for in the calculation. It can be assumed that this is only marginally CO2 relevant. In addition, the extent of operations such as storage and distribution of print products by the user is difficult to narrow down and thus could only be calculated with great effort. The disposal of print products after their usage phase is also (still) excluded. The evaluation of such operations, particularly concerning recycling, is still under discussion.