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 176–200 of 342 labs
I2 Analytical
Active
staining based on HSG 248.
(HSG 248) – 2021
(PCM) based on HSG 248
A007B based on BS EN15051-2:2013 +1:2016
DIN EN 12457-3
+ 3 more
DC Resistance
DC VOLTAGE
Temperatur-Simulation
AC CURRENT
Base metal thermocouples
+ 3 more
ASTM D3338
ASTM D 2624
ASTM D 5006
ASTM D 2386
ASTM D7153
+ 3 more
ITS Testing Services (UK)
Active
UK 3725 based on ASTM D2163
and BS EN 15984:2011-07
IP 411, ISO 6251
ASTM D6667 mod
ISO 8973 modified
+ 3 more
IEC 60079-7
IEC 60730-2-2: 2005
DIN EN 60730-1: 2017
DIN EN IEC 60730-2-22
IEC 60079-0
+ 3 more
Intona
Active
and Appx. 3 of HSG 227 (2004))
Executive guides HSG 264 (2012)
(HSG 264, 2012)
J B-Monitor
Active
(HSG 248) – 2021
No 1 based on HSG 248 – 2021
(PCM) based on HSG 248 – 2021
No 3 based on HSG 248 – 2021
(PCM) based on HSG 248
+ 1 more
JCS Technology
Active
ISO 178
BS 5350:Part C13
BS 2782 Part 10 Method 1005
BS EN ISO 14125
MIL-STD 810G:2008 Method 501.5
+ 3 more
Javer Labs
Active
MIL-STD-810G, Method 508:7
BS 2011:2.1 Ca:1977
(IEC 60068-2-10:2005+A1:2018,
MIL-STD-810H, Method 508:8
Johnson and Allen
Active
DC CURRENT
INSPECTION EQUIPMENT
AC CURRENT 50 Hz RMS
uncertainties may be increased.
KP Acoustics Research Labs
Active
BS EN ISO 10140-2:2021
ISO 3745
ISO 7171
IEC 60601-1
accordance with BS EN ISO 5349-1
Kiwa
Active
DIN EN 13079
BS 1212-4:1991 Clause 4, 13, 14
DIN EN 14622
BS 1212-3:1990 Clause 4
DIN EN 14623
+ 3 more
Kiwa
Active
DIN EN 55011: 2018
IEC/CISPR 22
DIN EN 55016-2-1
IEC 61326-2-2: 2012
IEC 61000-6-1
+ 3 more
Kiwa
Active
DIN EN 16510-2-3
DIN EN 16510-2-1
DIN EN 13229
DIN EN 16510-1
DIN EN 13240
+ 3 more
Kiwa
Active
DIN EN 55011: 2018
AS/NZS CISPR 11:2004
EN 55011 2016 + A1 2017 + A11 2020
IEC/CISPR 14-1
DIN EN 55013
+ 3 more
Kordus Consulting
Active
and Appendix 3 of HSG 227 (2004))
Appendix 5 of HSG 227 (2004))
Kova Asbestos Consultants
Active
(HSG 248) – 2021
(PCM) based on HSG 248
SAS 02 based on HSG 248
Kovia
Active
Appendix 5 of HSG 227 (2004))
HSG 227 (2004)
HSG 264 (2012) and Appendix 3 of
LAB (UK)
Active
(HSG 248) – 2021
(PCM) based on HSG 248
MAAM 05 based on HSG 248
(HSG 264, 2012)
Lambda Calibration
Active
PRESSURE (cont’d)
Distortion Factor
Spot frequency
Phase angle
(Herpes simplex virus type
+ 3 more
Lambeth Scientific Services
Active
(HSG 248) – 2021
(PCM) based on HSG 248
P-12 based on HSG 248
(HSG 248) – 2021
(PCM) based on HSG 248
ISO 12966-2
F06 6 & F06 5 based on BS EN
F05 4 based on BS 770:Part
+ 3 more
Leftfield Environmental
Active
(HSG 248) – 2021
LSOP6 based on HSG 248
(PCM) based on HSG 248
No matching labs found.