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EF/EMCI Logo Entity Type : CHEM_SUBST



Entity Type Description:

The Chemical Substance (CHEM_SUBST) entity type contains data identifying chemical substances that are regulated or monitored by EPA systems. Each substance is unique and is either a specific chemical, category, non-specific isomer or mixture. The entity type also includes references to biological, physical, and toxicological properties that are monitored by the Permit Compliance System (PCS).

Relationships:

Contains one record for each chemical referenced in EMCI using EMCIRN as the unique key. A chemical substance in CHEM_SUBST may refer to:

Subject Area: Chemicals

Entity Type Definition Source:

Functional Design for the Envirofacts Master Chemical Integrator, September 1994.

Entity Type Attributes:


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