1.146 | calibration function | ||

Presentation of a calibration curve by a mathematical function. | |||

Note 1: | The calibration function is established by fitting the data from the first step of calibration using the measured quantity values provided by measurement standards as input variables to calculate the expected indication. A calibration function bears no information about measurement uncertainty. (See also Note 1 to linearity of calibration and Note 2 to measurement procedure with standard addition.) | ||

Note 2: | Mathematical analysis of the fit of a calibration function may give a contribution to an uncertainty budget for a measured quantity value obtained from the calibration. | ||

Note 3: | The inverse of the calibration function, often termed “analytical function”, is applied on an observed indication to attribute a measured quantity value. This corresponds to the second step described in the definition of calibration. |

1.146 | calibration function | ||

Presentation of a calibration curve by a mathematical function. | |||

Note 1: | The calibration function is established by fitting the data from the first step of calibration using the measured quantity values provided by measurement standards as input variables to calculate the expected indication. A calibration function bears no information about measurement uncertainty. (See also Note 1 to linearity of calibration and Note 2 to measurement procedure with standard addition.) | ||

Note 2: | Mathematical analysis of the fit of a calibration function may give a contribution to an uncertainty budget for a measured quantity value obtained from the calibration. | ||

Note 3: | The inverse of the calibration function, often termed “analytical function”, is applied on an observed indication to attribute a measured quantity value. This corresponds to the second step described in the definition of calibration. |

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