Database Reference
In-Depth Information
Specifications have their own attributes, attachments, and change history. They also
define at which level of a product hierarchy to validate for compliance and which
potential exemptions are allowed. Specifications can optionally contain substances
including threshold based constraints or constraints based on
intentional adding
.
The following screenshot shows the
Substances
within a specification:
Non-substance based specifications are handled as well. For example, to allow for
disassembly and recovery of materials it may be specified that components may
not be glued.
Defining substances
It is possible in PG&C to keep track of thousands of substances, including very
detailed information per substance such as trade names, where a given substance
is used, other common names for the substance, and the CAS number. A
Chemical
Abstract Service
(
CAS
) is a service of the
American Chemical Society
that issues
unique and authoritative numbers identifying tens of millions of substances.
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