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
1,817
Accredited labs
19
Countries
Showing 251–275 of 1,817 labs
Conformity assessment — requirements for
Railway composite brake blocks — require
0,2 kN
0,4 kN
100 kN
+ 3 more
DIN EN ISO 945-1
ASTM E562
ASTM E1875
DIN EN 60068-2-64
DIN EN 60068-2-78
+ 3 more
Bundesanstalt für Straßen- und Verkehrswesen Referat F2, Passive Fahrzeugsicherheit, Biomechanik
Active
Beschleunigung
stoßförmig (sin 2 Impuls)
> 1500 m/s
Schwingungsaufnehmer
Bundesministerium der Verteidigung Bundeswehrkrankenhaus Berlin Abteilung XVI Laboratoriumsmedizin
Active
NRBC-Normoblasten
Anteil unreifer Retikulozyten
Erythrozyten
DELTA-He
Leukozyten
+ 3 more
Blutungszeit PFA ADP
Blutungszeit PFA EPI
PFA-P2Y
Erythrozyten
Hämatokrit
+ 3 more
Leukozyten
Enteroaggregative E. coli
Legionellen
Staphylokokkus aureus
Salmonellen
+ 3 more
DIN ISO 17289
DIN EN ISO 10523
DIN EN 27888
NF X 31-615 (Uniquement
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
EN IEC 61000-4
DIN EN IEC 61000
VDE 0847-4
DIN EN 55016-2
DIN EN IEC 61000-6
+ 3 more
DIN EN ISO 898-1
DIN EN ISO 898-2
ISO 898-1
ISO 898-2
DIN EN ISO 6892-2
+ 3 more
C G C Laboratory
Active
(HSG 248) – 2021
(PCM) based on HSG 248
SOP 5, based on HSG 248
SOP 4, based on HSG 248
/ Messgeräte
Radiometrie 100 µW/cm²
stärkemessgeräte
UV-A 365nm
Linearität der
+ 3 more
Charpy impact test (ISO 148-1)
Salt spray / neutral salt fog test (ISO
Radiated emissions (CISPR 32)
verwendete Abkürzungen:
ETSI EN 301 489-1: V2.2.3
EN 61000-3-2 and EN 61000-3-3
IEC 61000-6-1
IEC 61000-4-4: 2012
1.4 Electrostatic Discharge EN 61000-4
+ 3 more
C.W.E. Services
Active
(HSG 264, 2012)
HSG 227 (2004))
Safety Executive guides HSG 264
(2012) and App 3 of HSG 227
(HSG 248) – 2021
+ 3 more
CAL
Active
DIN 38402-A 11
DIN 38402-A 12
DIN 38402-A 13
DIN ISO 5667-5 (A 14)
DIN EN ISO 5667-6 (A 15)
+ 3 more
DIN EN ISO 17294-2
DIN EN ISO 14403-2
DIN EN ISO 13395
VDE 414-9-11
DIN EN ISO 10304-1
+ 3 more
CANAGROSA LAB&SERVICES
Active
ISO 2808
ISO 48-4
UNE-EN ISO 2808
ISO 2409
UNE-EN ISO 2360
+ 3 more
CARTESY
Active
Tensile testing of metallic materials (I
Vickers hardness test (ISO 6507)
Kraft
Railway vehicles — specific test require
Railway — traction effort and braking fo
+ 3 more
CATAS SpA
Active
ISO 9308-1
ISO 7899-2
DIN EN ISO 11205
DIN EN ISO 10304-1
ISO 14189
+ 3 more
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