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 226–250 of 386 labs
Life Environmental Services
Active
(HSG 248) – 2021
QSOP 01 based on HSG 248
(PCM) based on HSG 248
QSOP 03 based on HSG 248
accordance with (EN ISO 14644-
BS EN ISO 14644-1:2015
London Borough of Enfield
Active
staining based on HSG 248
(HSG 248) – 2021
(PCM) based on HSG 248
London Laboratories
Active
(HSG 248) – 2021
ASB04 based on HSG 248
(PCM) based on HSG 248
Lucideon
Active
DIN EN 772-13
DIN EN 1052-2
DIN EN 772-20
DIN EN 772-14
DIN EN 1052-4
+ 3 more
Lucion Services
Active
staining based on HSG 248
(HSG 248) – 2021
(PCM) based on HSG 248
3492, ISO14966 and HSG 248
DIN EN 14629
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M E Broadstone Limited
Active
Plain ring gauges (taper)
Plain gap gauges (parallel)
Plain plug gauges (taper)
LENGTH
ANGLE
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MP Calibration Services
Active
Plain plug gauges (parallel)
length bars)
LENGTH (continued)
Micrometers
(enzephalomyopathische Form
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MS Laboratories
Active
on BS 4401:Part 3:1970(1986)
ISO 936:1998
BS ISO 21528-2:2017
BS ISO 16649-2:2001
ISO 6888-1
+ 3 more
MS Testing
Active
IEC 60068-2-2
BS EN 60945, section 8.2.
ISO 13628-6: 2006
IEC 60068-2-1
DIN EN 60068-2-30
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MSS Consulting
Active
(HSG 264, 2012)
Appendix 5 of HSG 227 (2004)
Appendix 3 of HSG 227 (2004)
(HSG 248) – 2021
(PCM) based on HSG 248
+ 1 more
Marfleet Microbiology
Active
ISO 6579-1
ISO 21528-2
ISO 16649-2
TP/007 based on BS ISO
ISO 11290-2
+ 3 more
BS EN ISO 11607: Part1:2019 for the
ASTM F1980-21
ASTM F1886-16 (2024)
ASTM F1886M -16 (2024 )
ASTM F1140/F1140M-13 (2020)
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Meridian Technical Services
Active
BS EN 14876:2007/Internal proceduresDiss
BS EN ISO 18119:2018+A1:2021
BS EN ISO 22434:2011
BS EN ISO 10460:2018
BS EN ISO 13769:2018
tungsten carbide)
Plain ring gauges (taper)
Straight edges
LENGTH (cont’d)
Squares
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Micro Precision (Midlands)
Active
LENGTH
Caliper
Depth BS 6468: 2008, 0 to 300
Depth
Dial gauges and dial
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Microtech Services (Wessex)
Active
ISO 7251
# = 100 A
ISO 6888-3
1) A:2b based on ISO 4833-2:2013 Amd 1:2
2) A:6c based on ISO 21528-1:2017 by mos
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Moorcroft Controls
Active
DC CURRENT
Gas pressure (gauge)
ELECTRICAL
DC VOLTAGE
Measurement
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NSF Wales Limited
Active
BS EN ISO 7686:2005
DIN EN 997
DIN EN 13079
DIN ISO 10381-7
DIN EN 14622
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No matching labs found.