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SN EN 60645-5
Electroacoustics - Audiolometric equipment. Part 5: Instruments for the measurement of aural acoustic impedance/admittance
Edition
2005-01
OENORM EN ISO 10534-2
Acoustics - Determination of acoustic properties in impedance tubes - Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance (ISO 10534-2:2023)
Edition
2024-01-01
SN EN 61788-15
Superconductivity - Part 15: Electronic characteristic measurements - Intrinsic surface impedance of superconductor films at microwave frequencies
Edition
2011-12
OENORM EN 2591-705
Aerospace series - Elements of electrical and optical connection - Test methods - Part 705: Electrical elements - Measurement of stub input impedance of couplers
Edition
2002-12-01
OEVE/OENORM EN 60645-5
Electroacoustics - Audiometric equipment - Part 5: Instruments for the measurement of aural acoustic impedance/admittance (IEC 60645-5:2004)
Edition
2005-09-01
SN EN 50065-7
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Part 7: Equipment impedance
Edition
2001-11
NF P94-160-4
Soil : investigation and testing. Auscultation of buried work. Part 4: impedance test
Edition
1994-03-01
OVE EN 50065-4-4
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-4: Low voltage decoupling filter - Impedance filter (german version)
Edition
2024-03-01
SN EN 60512-23-7
Connectors for electronic equipment - Tests and measurements. Part 23-7: Screening and filtering tests - Test 23g: Effective transfer impedance of connectors
Edition
2005-03
SN EN 50289-1-11
Communication cables - Specifications for test methods - Part 1-11: Electrical test methods - Characteristic impedance, input impedance, return loss
Edition
2016-12