Each parameter is first assessed individually, then combined with the others within the criterion concerned to produce a representative value which is then graphically illustrated in a spider web diagram across a “traffic-light” scale (see Fig. 2). A position in the center red area means that caution is advised with the product concerned. Weaknesses will have been identified which make a more detailed review of the product necessary. A position in the yellow zone means that the product has an acceptable product profile. The green zone represents almost ideal product properties. Concrete recommendations arising out of an Eco-Check may include process improvements, more intensive product support for the customer, further communications activities or the development of a completely new product, a substitution or the introduction of restrictions on application.