Abstract： IEC 61207-1:2010 pdf free download.Expression of performance of gas analyzers -Part 1: General. NOTE 1 The mid-value of the interval is called the value (see 3.2.3) of the measurand and Its half-width the uncertainty (see 3.2.4). NOTE 2 The...

IEC 61207-1:2010 pdf free download.Expression of performance of gas analyzers -Part 1: General.

NOTE 1 The mid-value of the interval is called the value (see 3.2.3) of the measurand and Its half-width the uncertainty (see 3.2.4).

NOTE 2 The measurement is related to the indication (see 3.2.5) given by the instrument and to the values of correction obtained by calibration.

NOTE 3 The interval can be considered as representing the measurand provided that it is compatible with all other measurements of

the same measurand.

NOTE 4 The width of the interval, and hence the uncertainty, can only be given with a stated level of confidence (see 3,2,4. NOTE 1).

3.2.3

(measure.) value

mid element of the set assigned to represent the measurand

NOTE The measure-value Is no more representative of the measurand than any other element of the set. It Is singled out merely for

the convenience of expressing the set In the format V i U. where V is the mid element and U the half-width of the set, rather than by its extremes. The qualifier measure-” is used when deemed necessary to avoid confusion with the reading-value or the indicated value.

3.2.4

uncertainty (of measurement)

parameter, associated with the result of a measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand

NOTE 1 The parameter can be, for example, a standard deviation (Or a given multiple of it). or a half-width of an interval having a stated level of confidence.

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