Relative potency factors data formats
Relative potency factors quantify relative potencies of substances with respect to an effect and can be used to express combined exposures of multiple substances in terms of the exposure value of the chosen index substance (i.e., as index substance equivalents). Relative potency factors can be provided in case hazard characterisations are missing. If available, the uncertainty of externally specified RPFs can be specified with uncertainty sets (empirical distributions representing possible values) in an additional table.
Relative potency factors
Relative potency factors are linked to an effect using the effect code (idEffect) and to substances using the substance code (idSubstance).
Table aliases: RelativePotencyFactors, RelativePotencyFactor.
| Name | Type | Description | Aliases | Required |
|---|---|---|---|---|
idSubstance |
AlphaNumeric(50) |
The code of the substance. |
idSubstance, SubstanceId, SubstanceCode, Substance |
Yes |
idEffect |
AlphaNumeric(50) |
The effect code. |
idEffect, EffectId, Effect |
Yes |
RPF |
Numeric |
The relative potency factor. |
RPF, RelativePotencyFactor |
Yes |
Relative potency factor uncertainty
This table contains sets of values representing the uncertainty for relative potency factors.
Table aliases: RelativePotencyFactorsUncertain, RelativePotencyFactorUncertain.
| Name | Type | Description | Aliases | Required |
|---|---|---|---|---|
idUncertaintySet |
AlphaNumeric(50) |
The uncertainty set identification number. During each uncertainty iteration one set is used. |
idUncertaintySet, UncertaintyId |
Yes |
idEffect |
AlphaNumeric(50) |
The effect code (must correspond to values in id column of Effects table). |
idEffect, EffectId, Effect |
Yes |
idSubstance |
AlphaNumeric(50) |
The substance code (must correspond to values in id column of Substances table). |
idSubstance, SubstanceId, SubstanceCode, Substance |
Yes |
RPF |
Numeric |
The relative potency factor. |
RPF, RelativePotencyFactor |
Yes |