1.120 maximum permissible measurement error, (MPE) 
maximum permissible error 
limit of error 
Extreme value of measurement error, with respect to a known reference quantity value, permitted by specifications or regulations for a given measurement, measurement instrument, or measuring system. 
 Note 1: Usually, the term “maximum permissible errors” or “limits of error” is used where there are two extreme values. 
Note 2: The term “tolerance” should not be used to designate ‘maximum permissible error’. 
Source: [VIM 4.26] with added initialism. 
1.120 maximum permissible measurement error, (MPE) 
maximum permissible error 
limit of error 
Extreme value of measurement error, with respect to a known reference quantity value, permitted by specifications or regulations for a given measurement, measurement instrument, or measuring system. 
 Note 1: Usually, the term “maximum permissible errors” or “limits of error” is used where there are two extreme values. 
Note 2: The term “tolerance” should not be used to designate ‘maximum permissible error’. 
Source: [VIM 4.26] with added initialism. 

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