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AFNOR
AFNOR
NF ISO 27893
En Vigor
2013-06-15
Vacuum technology - Vacuum gauges - Evaluation of the uncertainties of
results of calibrations by direct comparison with a reference gauge
AFNOR
AFNOR
NF EN 60923
Anulada
1997-11-20
Ballasts for discharge lamps (excluding tubular fluorescent lamps).
Performance requirements.










