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
🇳🇱
NEN EN ISO 7626-2
1,817
Accredited labs
19
Countries
Showing 76–100 of 386 labs
BeckProsper
Active
ASTM A370-24
ASTM E23-24
ASTM E 384-22
ASTM E8/E8M-24
ISO 6507-1
+ 3 more
Birmingham City Council
Active
(HSG 248) – 2021 )
(PCM) based on HSG 248)
(PCM) based on HSG 248
staining based on HSG 248
(HSG 264, 2012)
staining based on HSG 248
(HSG 248) – 2021
(PCM) based on HSG 248
(HSG 264:2012)
Bridgend Asbestos Services
Active
(HSG 248) – 2021
P10.2 based on HSG 248
(PCM) based on HSG 248
British Board of Agrement
Active
DIN EN 12664
DIN EN 12939
DIN EN 12667
ISO 8301
BS 2782:Part 6:Method 632A:1993
+ 3 more
British Engineering Services
Active
ÖNORM EN ISO 3452-1
BS 3923-1:1986(Withdrawn)
ASTM E165-23
BS 4124:1991(Withdrawn)
DIN EN 10228-3
+ 3 more
Based on ISO 10312:2019 and ISO
SOP 16 by XRD (ISO BS EN
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
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
DIN EN 13284-1
BS ISO 9096:2017
requirements of BS EN 15259:2007
Standard and BS EN 15259:2007
DIN EN ISO 16911-1
+ 3 more
DC VOLTAGE
DC Resistance
DC CURRENT
AC Current Generation
Generation (continued)
+ 3 more
Campbell Associates
Active
Sound Calibrators
FREQUENCY
Microphones
based:
½” & ¼” microphones @ 250 Hz
+ 3 more
BS ISO 488:2008, 2446:2008 and
on BS 4401:Part 3:1970(1986)
BS 696-2:1989 (superseded and
BS ISO 6731:2010
ISO BS EN 3727-1:2002
+ 3 more
Electrolytes in blood serum:
Enzymes in blood serum:
(Chlamydia pneumoniae, Mycoplasma
urine:
Hormones in blood serum:
+ 1 more
Cavendish Laboratories
Active
(cdt), Deletion an Pos 117
(HSG 248) – 2021
(PCM) based on HSG 248
BS 6068-4.12:1998 (withdrawn)
Chamois Metrology
Active
Calibration of pressure
Gas pressure (gauge)
Gas Pressure (Differential)
common mode pressure of 3.5
Hydraulic pressure (gauge)
+ 3 more
Liquid-in-glass thermometers
ASTM D4052 (Digital density
Chemring Countermeasures
Active
IEC 60068-2-2
BS 2011:2.1 Ca:1977
IEC 60068-2-30
MIL-STD 331B: 1994:
DIN EN 60068-2-78
+ 3 more
No matching labs found.