You can register and maintain the environmental properties of a substance in the Environmental Properties section. Substances can be connected to part specific emissions, work center emissions, and emissions per supplier for purchase part.
A substance can be connected to a substance group, which can be used to categorize similar substances.
A substance also needs to have its Environmental Substance Type defined. This attribute indicates whether the substance is categorized as a substance, emission, compound, or substance family. If it's categorized as compound or substance family, you must also indicate its major contained substance, called Threshold Substance. A substance defined as a substance family consists of multiple substances that might impact the same regulation threshold, defined for the substance family.
The validity flag controls whether a substance can be added as an emission on the Eco-Footprint pages, where emissions can be added. The flag has no impact on calculations for substances that have already been added.
A substance must be registered.