Preferred Label : inaccuracy;
Detailed label : inaccuracy in analysis;
IUPAC definition : A quantitative term to describe the (lack of) accuracy of a chemical measurement process;
comprises the imprecision and the bias. Inaccuracy must be viewed as a two-component
quantity (vector); imprecision and bias should never be combined to give a scalar
measure for chemical measurement process inaccuracy. (One or the other component may,
however, be negligible under certain circumstances.) Inaccuracy should not be confused
with uncertainty. Inaccuracy (imprecision, bias) is characteristic of the measurement
process, whereas error and uncertainty are characteristics of a result. (The latter
characteristic, of course, derives from the imprecision and bounds for bias of the
chemical measurement process.);
Scope note : the resultant bias and imprecision for the overall measurement process generally arise
from several individual components, some of which act multiplicatively (e.g. sensitivity),
and some of which act additively (e.g. the blank).;
Origin ID : I02995;
See also
A quantitative term to describe the (lack of) accuracy of a chemical measurement process;
comprises the imprecision and the bias. Inaccuracy must be viewed as a two-component
quantity (vector); imprecision and bias should never be combined to give a scalar
measure for chemical measurement process inaccuracy. (One or the other component may,
however, be negligible under certain circumstances.) Inaccuracy should not be confused
with uncertainty. Inaccuracy (imprecision, bias) is characteristic of the measurement
process, whereas error and uncertainty are characteristics of a result. (The latter
characteristic, of course, derives from the imprecision and bounds for bias of the
chemical measurement process.)
