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 1,201–1,225 of 1,591 labs
Scopus Asbestos Compliance
Active
(HSG 248) – 2021
SAC-SOP-15 based on HSG 248
SAC-SOP-07 based on HSG 248
staining based on HSG 248
Seaward Electronic
Active
DC CURRENT
DC Resistance
DC VOLTAGE
DC RESISTANCE (continued)
Generation (continued)
+ 3 more
Sebert Trillingstechniek
Active
Clause 5, IEC 60068-2-31
IEC 60068-2-27
IEC 60068-2-64
IEC 60068-2-6
ETSI EN 319 412
ETSI EN 319 401
ETSI EN 319 411-2
ETSI EN 319 411-1
SembCorp Utilities (UK)
Active
(HSG 248) – 2021
DI/AN/ME/025 based on HSG 248
DI/AN/ME/001 based on HSG 248
DI/AN/ME/026 based on HSG 248
(PCM) based on HSG 248
ServiceCal
Active
PRESSURE (cont’d)
DC CURRENT
DC VOLTAGE
CFH-Gen, Macula-Degeneration
Measurement
+ 3 more
LENGTH
Plain plug gauges (parallel)
Internal
Caliper
LENGTH (cont’d)
+ 3 more
DIN EN ISO 12185
ASTM D 4052
DIN EN ISO 3405
DIN EN 13016-1
DIN EN 13016-2
+ 3 more
Shirley Technologies
Active
ASTM E 2149-20
BS EN ISO 20743:2021 Section
ISO 14119
BS EN ISO 20645:2004
BS 1425-1:1991 Appendix A
+ 3 more
ISO 37
ISO 8513
DIN EN 1393
ISO 21527-2
DIN EN ISO 527-4
+ 3 more
IEC 60947-1
IEC 60947-2
IEC 60947-3
IEC 60947-4-1
IEC 60947-4-2
+ 3 more
Thermodynamische Messgrößen
Temperaturmessgrößen
- Direktanzeigende Thermometer
Railway brake handbooks (UIC 547)
- Thermopaare, Thermoelemente
+ 3 more
DIN EN IEC 60255-1
DIN EN 60255-27: 2014
IEC 60255-27: 2013
DIN EN 60068-2-1 2008
DIN EN 60068-2-14
+ 3 more
IEC 61000-6-1
VDE 0839-6-1
IEC 61000-6-2: 2005
VDE 0839-6-2
IEC 61000-6-3: 2006
+ 3 more
DIN IEC 60060-1
IEC 60068-2-1
DIN EN IEC 60068-2-11
IEC 60068-2-14
IEC 60068-2-17
+ 3 more
IEC 61000-4-2: 2008
IEC 61000-4-4: 2012
IEC 61000-4-5: 2005
IEC 61000-4-6: 2013
IEC 61000-4-7
+ 3 more
DIN 45641
DIN 45630-1
DIN 45635-1
DIN 45635-14
DIN ISO 10494
+ 3 more
DIN EN 15625
IEC 61133
DIN 27202-10
DIN EN 15746-1
DIN EN 60068-2-64
+ 2 more
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
Siemens
Active
IEC 61000-4-6: 2013
IEC 61000-4-29: 2000
IEC 61000-4-11: 2004
IEC 61000-4-4: 2012
AS/NZS CISPR 11:2004
+ 3 more
Sigma-HSE (UK)
Active
DIN EN 13821
Sigma-HSE (UK) Ltd
DIN EN 14034-1
BS EN ISO/IEC 80079-20-2:2016
DIN EN 14034-2
+ 3 more
Smithers MSE
Active
BS ISO 5636-3:2013
BS ISO 5636-5:2013
BS ISO 2470-1:2016
BS ISO 2470-2:2008
ISO 2759
+ 3 more
Somerset Council
Active
(HSG 248) – 2021
R24 based on HSG 248
staining based on HSG 248
based on BS EN ISO 6579-1:
ISO 21528-2
ISO 21149:2017+Amd1:2022
DIN EN ISO 18415
method based on BS ISO 16649-2:
+ 3 more
Verschlußzeit Kollagen/ADP
Kollagen/Epinephrin
Basophile Granulozyten
Eosinophile Granulozyten
Erythrozyten
+ 3 more
No matching labs found.