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AFNOR
NF EN 60444-11
En Vigor
2011-03-01
Measurement of quartz crystal unit parameters - Part 11 : standard
method for the determination of the load resonance frequency fL and the
effective load capacitance CLeff using automatic network analyzer
techniques and error correction
AFNOR
NF A09-355
En Vigor
1985-08-01
Non destructive testing. Acoustic emission. Coupling of piezoelectric sensors.
AFNOR
NF EN IEC 61558-2-15
En Vigor
2025-03-14
Safety of transformers, reactors, power supply units and combinations
thereof - Part 2-15 : Particular requirements and tests for isolating
transformers for medical IT systems for the supply of medical locations
AFNOR
NF EN IEC 61291-1
En Vigor
2018-04-20
Optical amplifiers - Part 1 : generic specification
