Uncertainty factor definition
Uncertainty factor or "UF" means one (1) of several numeric factors used in operationally deriving criteria from experimental data to account for the quality or quantity of the available data.
Uncertainty factor means a value of 1, 3, or 10 that represents uncertainty inherent in extrapolating from available toxicity data to develop a Toxicity Reference Value. A total uncertainty factor is the product of all the relevant individual uncertainty factors for a specific air toxic. Individual uncertainty factors account for:
Uncertainty factor. (UF) means the ratio of the estimated number of pounds or kilograms of reduction by a nonpoint source to the number of pounds or kilograms of credit that will be authorized. The UF reflects the uncertainty associated with estimates of nonpoint source pollutant reductions.
Examples of Uncertainty factor in a sentence
Z1 = [1 +/- Umem/100] Z3 Uncertainty factor of the Net Energy measurement ------------------------------ Z3 = 1 +/- \ | U12 + U22 + U32 + U42 + U52 / 100 \| Where: U1 Effect of stream 1 brine flow measurement uncertainty in percent change in Correction Factor per percent measurement uncertainty U2 Effect of stream 1 brine inlet temperature measurement uncertainty in percent change in Correction Factor per measurement uncertainty (in deg.
Z1 - Uncertainty factor of the electrical meter reading [ *** ] Where: [ *** ] Z2 - Uncertainty factor of the Facility net power.
More Definitions of Uncertainty factor
Uncertainty factor. (UF) means the ratio of the estimated number of pounds or kilograms of nutrient load reduction by
Uncertainty factor or "UF" means one of several numeric factors used in
Uncertainty factor. Value used in extrapolation from a reference point (or POD), determined in experimental animals, to humans (assuming that humans may be more sensitive) or from a sub-population of individuals to the general population: for example, a value applied to the NOAEL to establish an ADI or TDI. The value depends on the size Unscheduled DNA synthesis (UDS): DNA synthesis that occurs at some stage in the cell cycle other than the S period (the normal or 'scheduled' DNA synthesis period), in response to DNA damage. It is usually associated with DNA repair. Volume of distribution: Apparent volume of fluid required to contain the total amount of a substance in the body at the same concentration as that present in the plasma, assuming equilibrium has been attained. Weight of evidence: This approach uses a combination of several independent sources of evidence (e.g. toxicological or genotoxicity data) to arrive at a conclusion regarding potential hazard (such as mutagenicity).