Scope
ISO 7626-5
Experimental Modal Analysis Using Impact Excitation
This test method characterises the dynamic properties of structures through experimental modal analysis using impact hammer excitation. The method measures natural frequencies, damping ratios, and mode shapes by striking the structure and recording the resulting vibration response. It is widely used in aerospace, automotive, civil engineering, and mechanical equipment development to validate structural designs and identify potential vibration issues. Accreditation ensures proper instrumentation calibration, correct measurement methodology, and reliable data interpretation for safety-critical applications.
What it measures
- Natural frequencies (modal frequencies)
- Damping ratios (modal damping)
- Mode shapes (displacement patterns)
- Frequency response functions (FRF)
- Coherence and data quality metrics
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DIN EN ISO 7626-1
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BS EN ISO 7626-1
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NF EN ISO 7626-1
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UNI EN ISO 7626-1
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UNE EN ISO 7626-1
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NEN EN ISO 7626-1
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DIN EN ISO 7626-2
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BS EN ISO 7626-2
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NF EN ISO 7626-2
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UNI EN ISO 7626-2
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UNE EN ISO 7626-2
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NEN EN ISO 7626-2
1,591
Accredited labs
17
Countries
Showing 976–1,000 of 1,591 labs
Minebea Intec Bovenden
Active
Konventioneller
Wägewert/
Massenormale
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
+ 3 more
Bacillus cereus Toxin
Clostridium perfringens
Salmonella spp.
Shigella spp.
Staphylococcus aureus Toxin
+ 3 more
ETSI EN 319 412
ETSI EN 319 401
ETSI EN 319 411-2
ETSI EN 319 411-1
Mitutoyo Deutschland
Active
Parallelendmaße 0,5 mm
DIN EN ISO 3650:1999
Parallelendmaße
> 10 mm
Parallelendmaße > 100 mm
+ 3 more
Mobiler Kalibrierdienst Fini
Active
Gleichspannung 3 mV
Messgeräte 10 mV
> 100 mV
> 220 mV
> 11 V
+ 3 more
Temperatur 50 °C
Railway brake handbooks (UIC 547)
1) In den CMC sind die erweiterten Messu
IEC 61000-4-2: 2008
VDE 0847-4-2
IEC 61000-4-3: 2006
VDE 0847-4-3
IEC 61000-4-4: 2012
+ 3 more
Mühlenkreiskliniken AöR Institut für Laboratoriumsmedizin, Transfusionsmedizin und Mikrobiologie
Suspended
Differentialblutbild
Kleines Blutbild (maschinell)
Thrombozyten
Unreife Thrombozyten (IPF)
Urinsediment (maschinell)
+ 3 more
DIN 4150-1
DIN 4150-2
DIN 4150-3
DIN ISO 8297
DIN EN ISO 12354-4
+ 3 more
München Klinik gGmbH Medizet - Institut für Laboratoriumsmedizin und medizinische Mikrobiologie
Active
Hämoglobin A1c
Hämoglobin-Differenzierung
Erythrozyten
Basophile Granolozyten
Eosinophile Granulozyten
+ 3 more
NATEC Sensors
Active
Railway brakes — conditions for homologa
− Durchfluss von Flüssigkeiten
Gleichspannung U
(Simulation des Signals
generators)
+ 3 more
2 · 10–6 mol/mol C 100 · 10–6 mol/mo
0,1 · 10–2 mol/mol < C 2,5 · 10–2 mol/
1 · 10–6 mol/mol C 100 · 10–6 mol/mo
5 · 10–6 mol/mol C 20 · 10–6 mol/mol
0,15 · 10–2 mol/mol C 20 · 10–2 mol/
+ 3 more
NMi TESTLAB
Active
IEC 61000-4-2: 2008
IEC 61000-4-3: 2006
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
IEC 61000-4-6: 2013
+ 3 more
NORMEC QS
Active
NEN-EN 13361
ISO 13362
NEN-EN 13491
DIN EN 13493
NEN-EN 13492
+ 3 more
NSF Wales Limited
Active
BS EN ISO 7686:2005
DIN EN 997
DIN EN 13079
DIN ISO 10381-7
DIN EN 14622
+ 3 more
Narda Safety Test Solutions
Active
Elektrische Feldstärke /
2 V/m
2,5 V/m
1 V/m
Magnetische Feldstärke /
+ 3 more
Nature’s Consultancy
Active
(HSG 248) – 2021
(PCM) based on HSG 248
DOC/002 based on HSG 248)
Navobi
Active
AM09 based on BS ISO 21527-1:
07L.1.11 based on ISO 5984:2002
DIN EN ISO 11290-2
ISO 4833-1
DIN EN ISO 8968-1
+ 3 more
Nemko S.p.A. a socio unico
Active
DIN EN 62368-1: 2016
DIN EN 61326-2-6
DIN EN 61010-2-101
EN IEC 62368-1
IEC 61326-2-6
+ 3 more
Nemko S.p.A. a socio unico
Active
DIN EN 50155
DIN EN 55014-1: 2018
IEC 61000-4-16: 2015
DIN EN IEC 60068-2-52
IEC 61326-1: 2012
+ 3 more
DIN EN ISO 7932
DIN EN ISO 6888-1
ISO 15213-1
DIN ISO 16649-2
DIN EN ISO 6888-3
+ 3 more
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