Glossary entry (derived from question below)
Danish term or phrase:
brugstolerance
English translation:
tolerance in use/usage
Danish term
Ireland
Reliable and accurate
Native in: English 
Works in: Danish to English, Norwegian to English, Swedish to English
brugstolerance
| 3 | tolerance in use/usage |
Paul Gratwick
|
| 3 | actual-process tolerance (number) |
Adrian MM.
|
| 2 | maintenance tolerance |
Thomas T. Frost
|
Proposed translations
tolerance in use/usage
Portugal
‘Very good precision work’ – Comunica.dk
Native in: Danish (Variant: Standard (rigsdansk)) 
, English (Variants: British, UK)
Works in: Danish to English, English to Danish, French to Danish
maintenance tolerance
At https://www.nist.gov/system/files/documents/pml/wmd/pubs/201... I found 'G-T.2. Maintenance Tolerances. – Maintenance tolerances shall apply to equipment in actual use, except as
provided in G-T.1. Acceptance Tolerances'. This is an American document and the term does not seem to have the same meaning in the UK.
I'm not specialised in technical matters, but hopefully this helps a bit.
https://www.nist.gov/system/files/documents/pml/wmd/pubs/2016/02/18/hb44-2016-final-web.pdf
https://onlaw.dk/bekendtg%C3%B8relse/bek-nr-585-af-11-06-1987
Austria
Retd.T&I, Barrister & Austro-Advokat
Native in: English (Variants: Scottish, British)
Works in: Spanish to English, English to Spanish, French to English, and 5 more.
actual-process tolerance (number)
You may have heard that a particular precision measuring tool has a certain tolerance number. --- Tolerance can be defined as the total *allowable* amount by which a measurement may vary.
For a process instrument, it is good practice to have the calibration tolerance a bit tighter than the actual process requirement.
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